New maps reveal the patterns of abundance of sagebrush birds

New maps reveal the patterns of abundance of sagebrush songbirds, based on Breeding Bird Survey count data combined with sagebrush cover, landform, and climate variables. Shown here is the range-wide relative abundance of Brewer’s sparrow. Map courtesy Patrick Donnelly, IWJV.

New maps reveal the patterns of abundance of sagebrush songbirds, based on Breeding Bird Survey count data combined with sagebrush cover, landform, and climate variables. Shown
here is the range-wide relative abundance of Brewer’s sparrow. Map courtesy Patrick Donnelly, IWJV.