In a study with Carolina chickadees in the Washington, DC, metropolitan area, researchers at the University of Delaware and Smithsonian Migratory Bird Center show how native trees provide more ...

Wagner DN, Curry RL, Chen N, Lovette IJ, Taylor SA. 2020. Genomic regions underlying metabolic and neuronal signaling pathways are temporally consistent outliers in a moving avian hybrid zone.

Although the mountain chickadee is the black-capped’s closest relative, the Carolina chickadee likely will cause the most trouble, especially in late spring and summer when the black-capped’s ...