IPaC resource list
This report is an automatically generated list of species and other resources such as critical habitat (collectively referred to as trust resources) under the U.S. Fish and Wildlife Service's (USFWS) jurisdiction that are known or expected to be on or near the project area referenced below. The list may also include trust resources that occur outside of the project area, but that could potentially be directly or indirectly affected by activities in the project area. However, determining the likelihood and extent of effects a project may have on trust resources typically requires gathering additional site-specific (e.g., vegetation/species surveys) and project-specific (e.g., magnitude and timing of proposed activities) information.
Below is a summary of the project information you provided and contact information for the USFWS office(s) with jurisdiction in the defined project area. Please read the introduction to each section that follows (Endangered Species, Migratory Birds, USFWS Facilities, and NWI Wetlands) for additional information applicable to the trust resources addressed in that section.
Location
Local offices
Endangered species
This resource list is for informational purposes only and does not constitute an analysis of project level impacts.
The primary information used to generate this list is the known or expected range of each species. Additional areas of influence (AOI) for species are also considered. An AOI includes areas outside of the species range if the species could be indirectly affected by activities in that area (e.g., placing a dam upstream of a fish population even if that fish does not occur at the dam site, may indirectly impact the species by reducing or eliminating water flow downstream). Because species can move, and site conditions can change, the species on this list are not guaranteed to be found on or near the project area. To fully determine any potential effects to species, additional site-specific and project-specific information is often required.
Section 7 of the Endangered Species Act requires Federal agencies to "request of the Secretary information whether any species which is listed or proposed to be listed may be present in the area of such proposed action" for any project that is conducted, permitted, funded, or licensed by any Federal agency. A letter from the local office and a species list which fulfills this requirement can only be obtained by requesting an official species list from either the Regulatory Review section in IPaC (see directions below) or from the local field office directly.
For project evaluations that require USFWS concurrence/review, please return to the IPaC website and request an official species list by doing the following:
- Draw the project location and click CONTINUE.
- Click DEFINE PROJECT.
- Log in (if directed to do so).
- Provide a name and description for your project.
- Click REQUEST SPECIES LIST.
Listed species1 and their critical habitats are managed by the Ecological Services Program of the U.S. Fish and Wildlife Service (USFWS) and the fisheries division of the National Oceanic and Atmospheric Administration (NOAA Fisheries2).
Species and critical habitats under the sole responsibility of NOAA Fisheries are not shown on this list. Please contact NOAA Fisheries for species under their jurisdiction.
Additional information on endangered species data is provided below.
-
Species listed under the Endangered Species Act are threatened or endangered; IPaC also shows species that are candidates, or proposed, for listing. See the listing status page for more information. IPaC only shows species that are regulated by USFWS (see FAQ).
- NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an office of the National Oceanic and Atmospheric Administration within the Department of Commerce.
The following species are potentially affected by activities in this location:
Status |
Endangered; A species in danger of extinction throughout all or a significant portion of its range. |
Description |
Least Bell's vireos are small birds. They are only 11.5-12.5 centimeters long. (About 4.5 to 5.0 inches) They have short rounded wings and short, straight bills. There is a faint white eye ring. Feathers are mostly gray above and pale below. This is a common protective marking in birds. Seen from below, the bird blends into the clouds. From above, it blends into the landcover. |
Critical habitat |
There is final critical habitat for this species.
(published in the Federal Register on
February 2, 1994
).
Your location does not overlap the critical habitat.
|
Population |
Western DPS: U.S.A. (AZ, CA, CO (western), ID, MT (western), NM (western), NV, OR, TX (western), UT, WA, WY (western)); Canada (British Columbia (southwestern); Mexico (Baja California, Baja California Sur, Chihuahua, Durango (western), Sinaloa, Sonora) |
Status |
Threatened; A species likely to become endangered within the foreseeable future throughout all or a significant portion of its range. |
Description |
Yellow-billed Cuckoos are fairly large, long, and slim birds. The mostly yellow bill is almost as long as the head, thick and slightly downcurved. They have a flat head, thin body, and very long tail. Wings appear pointed and swept back in flight. Yellow-billed Cuckoos are warm brown above and clean whitish below. Their blackish face mask is accompanied by a yellow eyering. In flight, the outer part of the wings flash rufous. From below, the tail has wide white bands and narrower black ones. References cited in Species Profile
|
Critical habitat |
There is final critical habitat for this species.
(published in the Federal Register on
April 21, 2021
).
Your location does not overlap the critical habitat.
|
Status |
Threatened; A species likely to become endangered within the foreseeable future throughout all or a significant portion of its range. |
Description |
Dorsal background coloration (the basic color on the snake's back) varies from brownish to olive with a checkered pattern of black spots, separated by a yellow dorsal stripe and two light colored lateral stripes. Background coloration and prominence of a black checkered pattern and the three light stripes are geographically and individually variable. The ventral surface (the snake's underside) is cream to olive or brown and sometimes infused with orange, especially in northern populations. |
Critical habitat |
No critical habitat has been designated for this species.
|
Status |
Threatened; A species likely to become endangered within the foreseeable future throughout all or a significant portion of its range. |
Description |
This species occurs from sea level to elevations of about 1,500 meters (5,200 feet). It has been extirpated from 70 percent of its former range and now is found primarily in coastal drainages of central California, from Marin County,California, south to northern Baja California, Mexico. Potential threats to the species include elimination or degradation of habitat from land development and land use activities and habitat invasion by non-native aquatic species. |
Critical habitat |
There is final critical habitat for this species.
(published in the Federal Register on
March 17, 2010
).
Your location does not overlap the critical habitat.
|
Species Guidelines |
|
Population |
U.S.A. (CA - Central California) |
Status |
Threatened; A species likely to become endangered within the foreseeable future throughout all or a significant portion of its range. |
Description |
It is a large, stocky, terrestrial salamander with a broad, rounded snout. Adults males are about 8 inches long, females a little less than 7. Coloration consists of white or pale yellow spots or bars on a black background on the back and sides. The belly varies from almost uniform white or pale yellow to a variegated pattern of white or pale yellow and black. The salamander's small eyes protrude from their heads. They have black irises. |
Critical habitat |
There is final critical habitat for this species.
(published in the Federal Register on
August 23, 2005
).
Your location does not overlap the critical habitat.
|
Status |
Threatened; A species likely to become endangered within the foreseeable future throughout all or a significant portion of its range. |
Description |
No description available |
Critical habitat |
There is final critical habitat for this species.
(published in the Federal Register on
December 19, 1994
).
Your location overlaps the critical habitat.
|
Status |
Candidate; A species under consideration for official listing for which there is sufficient information to support listing. |
Description |
Note - the monarch is a candidate species and not yet listed or proposed for listing. Consultation with U.S. Fish and Wildlife Service under section 7 of the Endangered Species Act is not required for candidate species, like the monarch. We encourage agencies, however, to take advantage of any opportunity they may have to conserve the species. For information on monarch conservation, visit https://www.fws.gov/initiative/pollinators/monarchs, http://www.mafwa.org/?page_id=2347, and, for the West, https://wafwa.org/committees-working-groups/monarch-working-group/. Adult monarch butterflies are large and conspicuous, with bright orange wings surrounded by a black border and covered with black veins. The black border has a double row of white spots, present on the upper side of the wings. Adult monarchs are sexually dimorphic, with males having narrower wing venation and scent patches. The bright coloring of a monarch serves as a warning to predators that eating them can be toxic. During the breeding season, monarchs lay their eggs on their obligate milkweed host plant (primarily Asclepias spp.), and larvae emerge after two to five days. Larvae develop through five larval instars (intervals between molts) over a period of 9 to 18 days, feeding on milkweed and sequestering toxic chemicals (cardenolides) as a defense against predators. The larva then pupates into a chrysalis before emerging 6 to 14 days later as an adult butterfly. There are multiple generations of monarchs produced during the breeding season, with most adult butterflies living approximately two to five weeks; overwintering adults enter into reproductive diapause (suspended reproduction) and live six to nine months. In many regions where monarchs are present, monarchs breed year-round. Individual monarchs in temperate climates, such as eastern and western North America, undergo long-distance migration, and live for an extended period of time. In the fall, in both eastern and western North America, monarchs begin migrating to their respective overwintering sites. This migration can take monarchs distances of over 3,000 km and last for over two months. In early spring (February-March), surviving monarchs break diapause and mate at the overwintering sites before dispersing. The same individuals that undertook the initial southward migration begin flying back through the breeding grounds and their offspring start the cycle of generational migration over again. |
Critical habitat |
No critical habitat has been designated for this species.
|
Status |
Threatened; A species likely to become endangered within the foreseeable future throughout all or a significant portion of its range. |
Description |
Valley elderberry longhorn beetle is a medium sized beetle that is endemic to the Central Valley of California. The beetle is found only in association with its host plant, elderberry (Sambucus spp.). Males range in length from about 2 cm (about ½ to nearly 1 inch), measured from the front of the head to the end of the abdomen, with antennae about as long as their bodies. Females are slightly broader than males and have shorter antennae. Adult males have red-orange elytra (wing covers) with four elongate spots. The red-orange fades to yellow on some museum specimens. Adult females have dark colored elytra. |
Critical habitat |
There is final critical habitat for this species.
(published in the Federal Register on
August 8, 1980
).
Your location does not overlap the critical habitat.
|
Species Guidelines |
|
Status |
Endangered; A species in danger of extinction throughout all or a significant portion of its range. |
Description |
No description available |
Critical habitat |
There is final critical habitat for this species.
(published in the Federal Register on
February 10, 2006
).
Your location does not overlap the critical habitat.
|
Status |
Threatened; A species likely to become endangered within the foreseeable future throughout all or a significant portion of its range. |
Description |
The vernal pool fairy shrimp (Branchinecta lynchi) is a small freshwater crustacean (0.12 to 1.5 inches long) belonging to an ancient order of branchiopods, the Anostraca. Like other anostracans, it has stalked compound eyes and eleven pairs of phyllopods (swimming legs that also function as gills). The various Branchinecta species are generally distinguished by characteristics of the maleÂ’s antennae and the size and shape of the femaleÂ’s brood pouch. Branchinecta lynchi are distinguished by its medium antennae with curved rounded tips ; males have an elongated pair of antennae coming off the front of the head used to grasp the females during mating and the females have a short, pyriform brood pouch (Vollmar et al 2023). The basal segment outgrowth below and posterior to the pulvillus is ridgelike in B. lynchi, and the bulge below the middle of the basal segment is typically smaller, more moundlike, and has fewer denticles (none in some cases) (Belk et al 1990, pg. 256-257). Vernal pool fairy shrimp are found only in ephemeral freshwater habitats, in a wide range of vernal pools, and have life histories adapted to the environmental conditions of these habitats. Branchinecta lynchi can be found in extremely small or marginal vernal pools (from a small puddle only 3cm deep and covering 0.56m^2 to 10 ha) that fill with water for just long enough to allow the individuals to hatch from cysts, reach sexual maturity, reproduce, and die (Eriksen and Belk 1999, pg. 93). The time to maturity and reproduction is temperature dependent, but in general the vernal pool fairy shrimp has an average of 18.0 days and 39.7 days, respectively. |
Critical habitat |
There is final critical habitat for this species.
(published in the Federal Register on
February 10, 2006
).
Your location does not overlap the critical habitat.
|
Status |
Endangered; A species in danger of extinction throughout all or a significant portion of its range. |
Description |
No description available |
Critical habitat |
There is final critical habitat for this species.
(published in the Federal Register on
February 10, 2006
).
Your location does not overlap the critical habitat.
|
Bald & Golden Eagles
Bald and golden eagles are protected under the Bald and Golden Eagle Protection Act1 and the Migratory Bird Treaty Act2.
Any person or organization who plans or conducts activities that may result in impacts to bald or golden eagles, or their habitats3, should follow appropriate regulations and consider implementing appropriate conservation measures, as described in the links below. Specifically, please review the "Supplemental Information on Migratory Birds and Eagles".
Additional information can be found using the following links:
- Eagle Management https://www.fws.gov/program/eagle-management
- Measures for avoiding and minimizing impacts to birds https://www.fws.gov/library/collections/avoiding-and-minimizing-incidental-take-migratory-birds
- Nationwide conservation measures for birds https://www.fws.gov/sites/default/files/documents/nationwide-standard-conservation-measures.pdf
- Supplemental Information for Migratory Birds and Eagles in IPaC https://www.fws.gov/media/supplemental-information-migratory-birds-and-bald-and-golden-eagles-may-occur-project-action
There are likely bald eagles present in your project area. For additional information on bald eagles, refer to Bald Eagle Nesting and Sensitivity to Human Activity
For guidance on when to schedule activities or implement avoidance and minimization measures to reduce impacts to migratory birds on your list, see the PROBABILITY OF PRESENCE SUMMARY below to see when these birds are most likely to be present and breeding in your project area.
Level of Concern |
This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
A large raptor, the bald eagle has a wingspread of about 7 feet. Adults have a dark brown body and wings, white head and tail, and a yellow beak. Juveniles are mostly brown with white mottling on the body, tail, and undersides of wings. Adult plumage usually is obtained by the 6th year. In flight, the Bald Eagle often soars or glides with the wings held at a right angle to the body. As in most other raptors, females are larger than males; sexes otherwise similar in appearance. References for Species Profile
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Level of Concern |
This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
|
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Description |
No description available |
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Probability of Presence Summary
The graphs below provide our best understanding of when birds of concern are most likely to be present in your project area. This information can be used to tailor and schedule your project activities to avoid or minimize impacts to birds. Please make sure you read "Supplemental Information on Migratory Birds and Eagles", specifically the FAQ section titled "Proper Interpretation and Use of Your Migratory Bird Report" before using or attempting to interpret this report.
Probability of Presence ()
Each green bar represents the bird's relative probability of presence in the 10km grid cell(s) your project overlaps during a particular week of the year. (A year is represented as 12 4-week months.) A taller bar indicates a higher probability of species presence. The survey effort (see below) can be used to establish a level of confidence in the presence score. One can have higher confidence in the presence score if the corresponding survey effort is also high.
How is the probability of presence score calculated? The calculation is done in three steps:
- The probability of presence for each week is calculated as the number of survey events in the week where the species was detected divided by the total number of survey events for that week. For example, if in week 12 there were 20 survey events and the Spotted Towhee was found in 5 of them, the probability of presence of the Spotted Towhee in week 12 is 0.25.
- To properly present the pattern of presence across the year, the relative probability of presence is calculated. This is the probability of presence divided by the maximum probability of presence across all weeks. For example, imagine the probability of presence in week 20 for the Spotted Towhee is 0.05, and that the probability of presence at week 12 (0.25) is the maximum of any week of the year. The relative probability of presence on week 12 is 0.25/0.25 = 1; at week 20 it is 0.05/0.25 = 0.2.
- The relative probability of presence calculated in the previous step undergoes a statistical conversion so that all possible values fall between 0 and 10, inclusive. This is the probability of presence score.
To see a bar's probability of presence score, simply hover your mouse cursor over the bar.
Breeding Season ()Yellow bars denote a very liberal estimate of the time-frame inside which the bird breeds across its entire range. If there are no yellow bars shown for a bird, it does not breed in your project area.
Survey Effort ()Vertical black lines superimposed on probability of presence bars indicate the number of surveys performed for that species in the 10km grid cell(s) your project area overlaps. The number of surveys is expressed as a range, for example, 33 to 64 surveys.
To see a bar's survey effort range, simply hover your mouse cursor over the bar.
No Data ()A week is marked as having no data if there were no survey events for that week.
Survey TimeframeSurveys from only the last 10 years are used in order to ensure delivery of currently relevant information. The exception to this is areas off the Atlantic coast, where bird returns are based on all years of available data, since data in these areas is currently much more sparse.
| Species | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Bald Eagle
Non-BCC Vulnerable
Non-BCC Vulnerable
|
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|
Golden Eagle
Non-BCC Vulnerable
Non-BCC Vulnerable
|
The potential for eagle presence is derived from data provided by the Avian Knowledge Network (AKN). The AKN data is based on a growing collection of survey, banding, and citizen science datasets and is queried and filtered to return a list of those birds reported as occurring in the 10km grid cell(s) which your project intersects, and that have been identified as warranting special attention because they are a BCC species in that area, an eagle (Eagle Act requirements may apply). To see a list of all birds potentially present in your project area, please visit the Rapid Avian Information Locator (RAIL) Tool.
The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern (BCC) and other species that may warrant special attention in your project location.
The migratory bird list generated for your project is derived from data provided by the Avian Knowledge Network (AKN). The AKN data is based on a growing collection of survey, banding, and citizen science datasets and is queried and filtered to return a list of those birds reported as occurring in the 10km grid cell(s) which your project intersects, and that have been identified as warranting special attention because they are a BCC species in that area, an eagle (Eagle Act requirements may apply), or a species that has a particular vulnerability to offshore activities or development.
Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not representative of all birds that may occur in your project area. To get a list of all birds potentially present in your project area, please visit the Rapid Avian Information Locator (RAIL) Tool.
If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating the Eagle Act should such impacts occur. Please contact your local Fish and Wildlife Service Field Office if you have questions.
Migratory birds
Certain birds are protected under the Migratory Bird Treaty Act1 and the Bald and Golden Eagle Protection Act2.
Any person or organization who plans or conducts activities that may result in impacts to migratory birds, eagles, and their habitats3 should follow appropriate regulations and consider implementing appropriate conservation measures, as described in the links below. Specifically, please review the "Supplemental Information on Migratory Birds and Eagles".
-
The Migratory Birds Treaty Act of 1918.
-
The Bald and Golden Eagle Protection Act of 1940.
Additional information can be found using the following links:
- Eagle Management https://www.fws.gov/program/eagle-management
- Measures for avoiding and minimizing impacts to birds https://www.fws.gov/library/collections/avoiding-and-minimizing-incidental-take-migratory-birds
- Nationwide conservation measures for birds https://www.fws.gov/sites/default/files/ documents/nationwide-standard-conservation-measures.pdf
- Supplemental Information for Migratory Birds and Eagles in IPaC https://www.fws.gov/media/supplemental-information-migratory-birds-and-bald-and-golden-eagles-may-occur-project-action
The birds listed below are birds of particular concern either because they occur on the USFWS Birds of Conservation Concern (BCC) list or warrant special attention in your project location. To learn more about the levels of concern for birds on your list and how this list is generated, see the FAQ below. This is not a list of every bird you may find in this location, nor a guarantee that every bird on this list will be found in your project area. To see exact locations of where birders and the general public have sighted birds in and around your project area, visit the E-bird data mapping tool (Tip: enter your location, desired date range and a species on your list). For projects that occur off the Atlantic Coast, additional maps and models detailing the relative occurrence and abundance of bird species on your list are available. Links to additional information about Atlantic Coast birds, and other important information about your migratory bird list, including how to properly interpret and use your migratory bird report, can be found below.
For guidance on when to schedule activities or implement avoidance and minimization measures to reduce impacts to migratory birds on your list, see the PROBABILITY OF PRESENCE SUMMARY below to see when these birds are most likely to be present and breeding in your project area.
Level of Concern |
This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
|
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Description |
A large raptor, the bald eagle has a wingspread of about 7 feet. Adults have a dark brown body and wings, white head and tail, and a yellow beak. Juveniles are mostly brown with white mottling on the body, tail, and undersides of wings. Adult plumage usually is obtained by the 6th year. In flight, the Bald Eagle often soars or glides with the wings held at a right angle to the body. As in most other raptors, females are larger than males; sexes otherwise similar in appearance. References for Species Profile
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
|
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Description |
No description available |
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
|
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Description |
Black-chinned Sparrows are small in size with a thin notched tail. Their head, underparts, rump, and uppertail-coverts are grayish, while their lower belly is whitish gray. Breeding males have a black upper throat and chin; brown wings, tail, primaries, greater-coverts, median-coverts and back with blackish streaks. Females have duller, restricted black on their face and chin; juveniles and winter adults have gray throat and lores. Juveniles have paler crowns and underparts lightly streaked with brownish wash. References cited in Species Profile
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
|
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Description |
No description available |
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
|
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Description |
No description available |
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Level of Concern |
This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions (BCRs) in the continental USA |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
|
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Description |
Adult males are bright yellow below, with a sharp black face mask and olive upperparts; a thin whitish line sets off the black mask from the head and neck. Immature males show traces of the full mask of adult males. Females are a plain olive brown, usually with yellow brightening the throat and under the tail; they lack the black mask. References cited in Species Profile
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Level of Concern |
This is not a Bird of Conservation Concern (BCC) in this area, but warrants attention because of the Eagle Act or for potential susceptibilities in offshore areas from certain types of development or activities. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
No description available |
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
The Lawrence's Goldfinch is a small songbird with a gray back and sides, yellow patch on the chest, yellow wingbars and a dusky or black face. Adult males have a black face, gray nape and mantle, black wings with broad yellow bars, yellow edges on primary feathers and a yellow patch on the breast. Adult females are gray overall and have subtle yellow wing bars, edges of primary feathers, and breast patch. Juveniles are similar to adult females, but have even less yellow, and sometimes appear all brownish gray. References cited in Species Profile
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
Marbled Godwits are large shorebirds that have a slightly upturned bill with a dark tip and pinkish base, long legs, and are rich buff-brown all over. In addition to having cinnamon wing linings and an orangish stripe in their wings, their breeding plumage consists of barring across their chest. Nonbreeding plumage consists of a plain breast, and juveniles look similar to nonbreeding adults. References cited in Species Profile
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Level of Concern |
This is a Bird of Conservation Concern (BCC) only in particular Bird Conservation Regions (BCRs) in the continental USA |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
Small black-and-white woodpecker. Head with black ear-coverts and malar stripe, which both connect with black nape. Upperparts, including wings and tail black with white barring; underparts white with some black spots and barring on sides, flanks, and under tail-coverts. Sexes alike, except male has forehead black becoming streaked with white on center of crown and entirely red on rear crown and upper nape, while female has these areas entirely black with some white streaking. Juveniles resemble adults but have slightly more grayish to buffy underparts, whiter upperparts, and, unlike adults, both sexes show red in crown (usually a small patch in center of crown in males, while females have fewer and more scattered red-tipped feathers). References cited in Species Profile
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
Oak Titmice are gray-brown, small songbirds with short, stubby bills, a short crest on the head, and a medium-long tail. They are slightly darker above than below, and may show a slight buffy wash on the flanks. References cited in Species Profile
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
Olive-sided Flycatchers are large with a relatively short tail, and have a white center on their breast which contrasts sharply with gray sides, giving a vested appearance. Juveniles are similar to adults, however, their upperparts are more brownish and wing feather edges washed buff. References cited in Species Profile
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
The Short-billed Dowitcher is a medium-sized shorebird with a bill twice as long as its head. It has moderately long, pale legs. Juvenile plumage includes a buffy chest and flanks, less spotting and barring than breeding adults. The back feathers are dark centered with broad buffy edges, giving a slightly scaly appearance, and the tertials are dark with orange pattern inside ("tiger-striped"). References cited in Species Profile
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
The Tricolored Blackbird is a medium-sized (18-24cm total length), sexually dimorphic North American passerine (Beedy, Edward, and Hamilton III 1999). Adult males are typically larger than females, and are black with bright red and white plumage on the wing shoulder. Adult females have sooty brown-black plumage with distinct grayish streaks, a relatively white chin and throat, and a smaller reddish shoulder-patch. Banding studies indicate a lifespan of 12-13 years (DeHaven and Neff 1973, Kennard 1975). Citations:
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
No description available |
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
No description available |
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Level of Concern |
This is a Bird of Conservation Concern (BCC) throughout its range in the continental USA and Alaska. |
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Presence |
no data
survey effort
breeding season
probability of presence
What's this?
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Description |
Yellow-billed Magpies are large black-and-white songbirds with a long dark tail as well as bright yellow around their bill and eye. Juveniles are similar to adults, but are less iridescent and have a brownish wash on their head and back. References cited in Species Profile
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Probability of Presence Summary
The graphs below provide our best understanding of when birds of concern are most likely to be present in your project area. This information can be used to tailor and schedule your project activities to avoid or minimize impacts to birds. Please make sure you read "Supplemental Information on Migratory Birds and Eagles", specifically the FAQ section titled "Proper Interpretation and Use of Your Migratory Bird Report" before using or attempting to interpret this report.
Probability of Presence ()
Each green bar represents the bird's relative probability of presence in the 10km grid cell(s) your project overlaps during a particular week of the year. (A year is represented as 12 4-week months.) A taller bar indicates a higher probability of species presence. The survey effort (see below) can be used to establish a level of confidence in the presence score. One can have higher confidence in the presence score if the corresponding survey effort is also high.
How is the probability of presence score calculated? The calculation is done in three steps:
- The probability of presence for each week is calculated as the number of survey events in the week where the species was detected divided by the total number of survey events for that week. For example, if in week 12 there were 20 survey events and the Spotted Towhee was found in 5 of them, the probability of presence of the Spotted Towhee in week 12 is 0.25.
- To properly present the pattern of presence across the year, the relative probability of presence is calculated. This is the probability of presence divided by the maximum probability of presence across all weeks. For example, imagine the probability of presence in week 20 for the Spotted Towhee is 0.05, and that the probability of presence at week 12 (0.25) is the maximum of any week of the year. The relative probability of presence on week 12 is 0.25/0.25 = 1; at week 20 it is 0.05/0.25 = 0.2.
- The relative probability of presence calculated in the previous step undergoes a statistical conversion so that all possible values fall between 0 and 10, inclusive. This is the probability of presence score.
To see a bar's probability of presence score, simply hover your mouse cursor over the bar.
Breeding Season ()Yellow bars denote a very liberal estimate of the time-frame inside which the bird breeds across its entire range. If there are no yellow bars shown for a bird, it does not breed in your project area.
Survey Effort ()Vertical black lines superimposed on probability of presence bars indicate the number of surveys performed for that species in the 10km grid cell(s) your project area overlaps. The number of surveys is expressed as a range, for example, 33 to 64 surveys.
To see a bar's survey effort range, simply hover your mouse cursor over the bar.
No Data ()A week is marked as having no data if there were no survey events for that week.
Survey TimeframeSurveys from only the last 10 years are used in order to ensure delivery of currently relevant information. The exception to this is areas off the Atlantic coast, where bird returns are based on all years of available data, since data in these areas is currently much more sparse.
| Species | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Bald Eagle
Non-BCC Vulnerable
Non-BCC Vulnerable
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Black Tern
BCC Rangewide (CON)
BCC Rangewide (CON)
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Black-chinned Sparrow
BCC Rangewide (CON)
BCC Rangewide (CON)
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California Thrasher
BCC Rangewide (CON)
BCC Rangewide (CON)
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Clark's Grebe
BCC Rangewide (CON)
BCC Rangewide (CON)
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Common Yellowthroat
BCC - BCR
BCC - BCR
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Golden Eagle
Non-BCC Vulnerable
Non-BCC Vulnerable
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Lawrence's Goldfinch
BCC Rangewide (CON)
BCC Rangewide (CON)
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Marbled Godwit
BCC Rangewide (CON)
BCC Rangewide (CON)
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Nuttall's Woodpecker
BCC - BCR
BCC - BCR
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Oak Titmouse
BCC Rangewide (CON)
BCC Rangewide (CON)
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Olive-sided Flycatcher
BCC Rangewide (CON)
BCC Rangewide (CON)
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| Species | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Short-billed Dowitcher
BCC Rangewide (CON)
BCC Rangewide (CON)
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Tricolored Blackbird
BCC Rangewide (CON)
BCC Rangewide (CON)
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Willet
BCC Rangewide (CON)
BCC Rangewide (CON)
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Wrentit
BCC Rangewide (CON)
BCC Rangewide (CON)
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Yellow-billed Magpie
BCC Rangewide (CON)
BCC Rangewide (CON)
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Nationwide Conservation Measures describes measures that can help avoid and minimize impacts to all birds at any location year round. Implementation of these measures is particularly important when birds are most likely to occur in the project area. When birds may be breeding in the area, identifying the locations of any active nests and avoiding their destruction is a very helpful impact minimization measure. To see when birds are most likely to occur and be breeding in your project area, view the Probability of Presence Summary. Additional measures or permits may be advisable depending on the type of activity you are conducting and the type of infrastructure or bird species present on your project site.
The Migratory Bird Resource List is comprised of USFWS Birds of Conservation Concern (BCC) and other species that may warrant special attention in your project location.
The migratory bird list generated for your project is derived from data provided by the Avian Knowledge Network (AKN). The AKN data is based on a growing collection of survey, banding, and citizen science datasets and is queried and filtered to return a list of those birds reported as occurring in the 10km grid cell(s) which your project intersects, and that have been identified as warranting special attention because they are a BCC species in that area, an eagle (Eagle Act requirements may apply), or a species that has a particular vulnerability to offshore activities or development.
Again, the Migratory Bird Resource list includes only a subset of birds that may occur in your project area. It is not representative of all birds that may occur in your project area. To get a list of all birds potentially present in your project area, please visit the Rapid Avian Information Locator (RAIL) Tool.
The probability of presence graphs associated with your migratory bird list are based on data provided by the Avian Knowledge Network (AKN). This data is derived from a growing collection of survey, banding, and citizen science datasets.
Probability of presence data is continuously being updated as new and better information becomes available. To learn more about how the probability of presence graphs are produced and how to interpret them, go the Probability of Presence Summary and then click on the "Tell me about these graphs" link.
To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, migrating or year-round), you may query your location using the RAIL Tool and look at the range maps provided for birds in your area at the bottom of the profiles provided for each bird in your results. If a bird on your migratory bird species list has a breeding season associated with it, if that bird does occur in your project area, there may be nests present at some point within the timeframe specified. If "Breeds elsewhere" is indicated, then the bird likely does not breed in your project area.
Migratory birds delivered through IPaC fall into the following distinct categories of concern:
- "BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern throughout their range anywhere within the USA (including Hawaii, the Pacific Islands, Puerto Rico, and the Virgin Islands);
- "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in the continental USA; and
- "Non-BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either because of the Eagle Act requirements (for eagles) or (for non-eagles) potential susceptibilities in offshore areas from certain types of development or activities (e.g. offshore energy development or longline fishing).
Although it is important to try to avoid and minimize impacts to all birds, efforts should be made, in particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC species of rangewide concern. For more information on conservation measures you can implement to help avoid and minimize migratory bird impacts and requirements for eagles, please see the FAQs for these topics.
For additional details about the relative occurrence and abundance of both individual bird species and groups of bird species within your project area off the Atlantic Coast, please visit the Northeast Ocean Data Portal. The Portal also offers data and information about other taxa besides birds that may be helpful to you in your project review. Alternately, you may download the bird model results files underlying the portal maps through the NOAA NCCOS Integrative Statistical Modeling and Predictive Mapping of Marine Bird Distributions and Abundance on the Atlantic Outer Continental Shelf project webpage.
Bird tracking data can also provide additional details about occurrence and habitat use throughout the year, including migration. Models relying on survey data may not include this information. For additional information on marine bird tracking data, see the Diving Bird Study and the nanotag studies or contact Caleb Spiegel or Pam Loring.
If your project has the potential to disturb or kill eagles, you may need to obtain a permit to avoid violating the Eagle Act should such impacts occur.
The migratory bird list generated is not a list of all birds in your project area, only a subset of birds of priority concern. To learn more about how your list is generated, and see options for identifying what other birds may be in your project area, please see the FAQ "What does IPaC use to generate the migratory birds potentially occurring in my specified location". Please be aware this report provides the "probability of presence" of birds within the 10 km grid cell(s) that overlap your project; not your exact project footprint. On the graphs provided, please also look carefully at the survey effort (indicated by the black vertical bar) and for the existence of the "no data" indicator (a red horizontal bar). A high survey effort is the key component. If the survey effort is high, then the probability of presence score can be viewed as more dependable. In contrast, a low survey effort bar or no data bar means a lack of data and, therefore, a lack of certainty about presence of the species. This list is not perfect; it is simply a starting point for identifying what birds of concern have the potential to be in your project area, when they might be there, and if they might be breeding (which means nests might be present). The list helps you know what to look for to confirm presence, and helps guide you in knowing when to implement conservation measures to avoid or minimize potential impacts from your project activities, should presence be confirmed. To learn more about conservation measures, visit the FAQ "Tell me about conservation measures I can implement to avoid or minimize impacts to migratory birds" at the bottom of your migratory bird trust resources page.
Facilities
National Wildlife Refuge lands
Any activity proposed on lands managed by the National Wildlife Refuge system must undergo a 'Compatibility Determination' conducted by the Refuge. Please contact the individual Refuges to discuss any questions or concerns.
There are no refuge lands at this location.
Fish hatcheries
There are no fish hatcheries at this location.
Wetlands in the National Wetlands Inventory (NWI)
Impacts to NWI wetlands and other aquatic habitats may be subject to regulation under Section 404 of the Clean Water Act, or other State/Federal statutes.
For more information please contact the Regulatory Program of the local U.S. Army Corps of Engineers District.
Wetland information is not available at this time
This can happen when the National Wetlands Inventory (NWI) map service is unavailable, or for very large projects that intersect many wetland areas. Try again, or visit the NWI map to view wetlands at this location.
The Service's objective of mapping wetlands and deepwater habitats is to produce reconnaissance level information on the location, type and size of these resources. The maps are prepared from the analysis of high altitude imagery. Wetlands are identified based on vegetation, visible hydrology and geography. A margin of error is inherent in the use of imagery; thus, detailed on-the-ground inspection of any particular site may result in revision of the wetland boundaries or classification established through image analysis.
The accuracy of image interpretation depends on the quality of the imagery, the experience of the image analysts, the amount and quality of the collateral data and the amount of ground truth verification work conducted. Metadata should be consulted to determine the date of the source imagery used and any mapping problems.
Wetlands or other mapped features may have changed since the date of the imagery or field work. There may be occasional differences in polygon boundaries or classifications between the information depicted on the map and the actual conditions on site.
Before you proceed
When saving as a PDF, select the option to Save as PDF. Selecting Microsoft Print To PDF will result in a significantly larger file size.
Do you need official correspondence from USFWS in the form of a species list for consultation purposes under Section 7 of the Endangered Species Act?
If so, click Cancel, and then click Define Project (requires an IPaC login). Follow the prompts to the project home page and click Request species list.
A printed resource list from the IPaC Explore Location page is not considered official USFWS correspondence for ESA consultation purposes.
