| | Accession Number | 5001900 |
| | Title | Coordination of the North American Breeding Bird Survey |
| | Project Description | The North American Breeding Bird Survey (BBS) was established in 1966 to monitor the status |
| | and trends of all species of birds breeding in North America. The survey consists of approximately |
| | 4000 randomly-located roadside routes scattered across the continental United States, Canada, |
| | and Alaska. Each route is 24.5 miles long, with 3-minute point counts conducted at 0.5 mile |
| | intervals, and is surveyed once annually during the peak of breeding activity. The counts of each |
| | species along a route are used as indices of abundance used to estimate changes in bird |
| | population levels. The BBS provides trend estimates for more than 400 species of birds at various |
| | geographic scales, and these data are widely used by resource managers, researchers, |
| | non-governmental organizations, and the general public to indicate the overall health of regional |
| | avian communities and the ecosystems they inhabit. |
| | Keywords | breeding bird surveys, build analysis, population trends, regional analysis, |
| | Principal | Keith Pardieck, USGS Patuxent Wildlife Research Center: Keith_Pardieck@usgs.gov; |
| | Investigators |
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