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Filters: partyWithName: U.S. Geological Survey, National Biological Information Infrastructure (NBII) (X)

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as part of a survey initiated in 1979 by the National Wildlife Federation. This database includes data from 1986-2005 midwinter counts and includes some statewide, regional and national trends. Survey routes are included in the database only if they were surveyed consistently in at least 4 years and where at least 4 eagles were counted in a single year.
    map background search result map search result map Midwinter Bald Eagle Counts, 1986-2005 (update 2008) Midwinter Bald Eagle Counts, 1986-2005 (update 2008)