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What does IPaC use to generate the probability of presence graphs for the migratory birds potentially <br />occurring in my specied location? <br />The probability of presence graphs associated with your migratory bird list are based on data provided by <br />the Avian Knowledge Network (AKN). This data is derived from a growing collection of survey, banding, and <br />citizen science datasets. <br />Probability of presence data is continuously being updated as new and better information becomes <br />available. To learn more about how the probability of presence graphs are produced and how to interpret <br />them, go the Probability of Presence Summary and then click on the "Tell me about these graphs" link. <br />How do I know if a bird is breeding, wintering or migrating in my area? <br />To see what part of a particular bird's range your project area falls within (i.e. breeding, wintering, <br />migrating or year-round), you may query your location using the RAIL Tool and look at the range maps <br />provided for birds in your area at the bottom of the proles provided for each bird in your results. If a bird <br />on your migratory bird species list has a breeding season associated with it, if that bird does occur in your <br />project area, there may be nests present at some point within the timeframe specied. If "Breeds <br />elsewhere" is indicated, then the bird likely does not breed in your project area. <br />What are the levels of concern for migratory birds? <br />Migratory birds delivered through IPaC fall into the following distinct categories of concern: <br />1. "BCC Rangewide" birds are Birds of Conservation Concern (BCC) that are of concern throughout their <br />range anywhere within the USA (including Hawaii, the Pacic Islands, Puerto Rico, and the Virgin <br />Islands); <br />2. "BCC - BCR" birds are BCCs that are of concern only in particular Bird Conservation Regions (BCRs) in <br />the continental USA; and <br />3. "Non-BCC - Vulnerable" birds are not BCC species in your project area, but appear on your list either <br />because of the Eagle Act requirements (for eagles) or (for non-eagles) potential susceptibilities in <br />oshore areas from certain types of development or activities (e.g. oshore energy development or <br />longline shing). <br />Although it is important to try to avoid and minimize impacts to all birds, eorts should be made, in <br />particular, to avoid and minimize impacts to the birds on this list, especially eagles and BCC species of <br />rangewide concern. For more information on conservation measures you can implement to help avoid and <br />minimize migratory bird impacts and requirements for eagles, please see the FAQs for these topics. <br />Details about birds that are potentially aected by oshore projects <br />For additional details about the relative occurrence and abundance of both individual bird species and <br />groups of bird species within your project area o the Atlantic Coast, please visit the Northeast Ocean Data <br />Portal. The Portal also oers data and information about other taxa besides birds that may be helpful to <br />you in your project review. Alternately, you may download the bird model results les underlying the portal <br />maps through the NOAA NCCOS Integrative Statistical Modeling and Predictive Mapping of Marine Bird <br />Distributions and Abundance on the Atlantic Outer Continental Shelf project webpage. <br />Bird tracking data can also provide additional details about occurrence and habitat use throughout the <br />year, including migration. Models relying on survey data may not include this information. For additional <br />information on marine bird tracking data, see the Diving Bird Study and the nanotag studies or contact