Black-capped (Poecile atricapillus) and mountain (P. gambeli) chickadees are common backyard birds native to the Colorado Front-Range with broadly overlapping distributions in western North America.

Biologists know that climate change is causing southern species' ranges to move northward in the Northern Hemisphere. But little research has been done on the indirect ways climate change is ...

Hybrids of two common North American songbirds, the black-capped and mountain chickadee, are more likely to be found in places where humans have altered the landscape in some way, finds new CU Boulder ...

There’s something special about chickadees. They’re curious (they’ll come investigate if you make a pish-pish-pish sound), they’re smart (they stash seeds to eat over the winter), and they’re so ...

Scientists have found that hybrid chickadees have marked deficiencies in learning and memory compared to their pure species parents, a possible selective disadvantage. The study is the first to ...

I sometimes hear Georgians refer to the little black-and-white bird coming to their feeders as the black-capped chickadee. Actually, in Georgia, it would be the Carolina chickadee, one of the state’s ...

A black-capped chickadee by any other name is a Poecile atricapillus. That’s the bird’s scientific name, the reference used worldwide to avoid the confusion a list of local names could offer. For ...

Mountain chickadees in Boulder have evolved a different tune to avoid getting mixed up with their cousins, according to a new study led by the University of Colorado Boulder published Oct. 9 in the ...

Black capped chickadees are one of the most common birds to visit backyard feeders. They seem to be common everywhere and especially enjoy eating sunflower seeds, peanuts, and suet. Chickadees are ...

Wet snow pelts my face and pulls against my skis as I climb above 8,000 feet in the Sierra Nevada of eastern California, tugging a sled loaded with batteries, bolts, wire and 40 pounds of sunflower ...

The first example of an animal making sophisticated decisions about the danger posed by a predator from the information contained in the alarm calls of another species has been discovered. If Dr. John ...