Very similar to the Black-capped Chickadee, this bird replaces it in the southeastern states. Living in milder climates, it has been reported to be less of a visitor to bird feeders, but it does come ...

Black-capped (Poecile atricapillus) and Carolina chickadees (P. carolinensis) hybridize in a narrow band that stretches from New Jersey to Kansas. Using a combination of genomic, transcriptomic, and ...

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 ...