Positive Detection Breeding Bird Survey Routes - 1966-2025 - USGS [ds2800] Extended Table

The "50-StopData", "SpeciesList", and "Routes" were used and joined together by CDFW staff to create this data. Negative detections were recorded, but removed from this dataset due to size constraints. --------------------------------------------------------------------------------------------------------- The 1966-2025 North American Breeding Bird Survey (BBS) dataset contains avian point count data for more than 700 North American bird taxa (species, races, and unidentified species groupings).

These data are collected annually during the breeding season, primarily in June, along thousands of randomly established roadside survey routes in the United States and Canada. Routes are roughly 24.5 miles (39.2 km) long with counting locations placed at approximately half-mile (800-m) intervals, for a total of 50 stops. At each stop, a citizen scientist highly skilled in avian identification conducts a 3-minute point count, recording all birds seen within a quarter-mile (400-m) radius and all birds heard.