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 ...

MILWAUKEE - One of Wisconsin's smallest and toughest birds just so happens to also be one of our first signs of spring. In January, a noticeable new sound can be heard across forests, neighborhoods ...

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

(The Conversation is an independent and nonprofit source of news, analysis and commentary from academic experts.) Sofia Marie Haley, University of Nevada, Reno (THE CONVERSATION) I approach a flock of ...