Environmentalists are seeking Endangered Species Act protections for an Arctic-dwelling bird that has not been documented in ...

Each fall, mountain chickadees face an almost impossible memory challenge that pushes their tiny brains to a biological ...

I approach a flock of mountain chickadees feasting on pine nuts. A cacophony of sounds, coming from the many different bird species that rely on the Sierra Nevada's diverse pine cone crop, fill the ...

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 ...

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 ...

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 University ...

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 ...

ANCHORAGE, Alaska— The Center for Biological Diversity petitioned the U.S. Fish and Wildlife Service today to protect the distinct North American subspecies of the gray-headed chickadee under the ...

Add Yahoo as a preferred source to see more of our stories on Google. Chickadee in early spring looked to be longing for the sun after very rainy weather. I wasn't able to get out to take pictures ...

Is there something universal about the sounds we make that allows vocal learners -- like songbirds -- to figure out how we're feeling? Sounds like it, according to new research. Is there something ...

Add Yahoo as a preferred source to see more of our stories on Google. Mountain chickadees are unusual in having more complex calls than songs. Vladimir Pravosudov I approach a flock of mountain ...