-
The North American Breeding Bird Survey, Analysis Results 1966 - 2019
This data product consists of a database of population change and abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data.... -
The North American Breeding Bird Survey, Analysis Results 1966 - 2019
This data product consists of a database of population change and abundance estimates for North American birds, estimated from North American Breeding Bird Survey (BBS) data.... -
Estimates of United States bird trends and bird group relative abundance...
This dataset consists of estimates of population trends for 236 species and species complexes of North American birds, and bird taxonomic, primary habitat biome, or conservation... -
Phenology effects in the North American Breeding Bird Survey - Results by...
This data product provides summary information, by species, of changes in relative visibility of birds (phenology effects) through the April - July time period in which the...