The boreal chickadee also has a dark brown cap and rich brown sides and flanks, but it has predominantly grayish cheeks, lacks a rufous tint on the back and rump, and shows no white wing edgings.
darkness of back, prominence of white wing edgings, and richness of buff wash on the flanks. Although the mountain chickadee is the black-capped’s closest relative, the Carolina chickadee likely ...
Black-capped and mountain chickadees are closely-related species that co-occur in Boulder County but occupy different habitats based on elevation. The Boulder Chickadee Study leverages an extensive ...
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.
Anyone who puts up a feeder in their backyard is probably acquainted with chickadees. I was lucky enough to grow up with parents who were really into backyard bird feeding and have known these ...