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 ...

Birds don’t get enough credit for the magnificent creatures they are. Many people have heard a black-capped chickadee trilling or chirping in their backyard but fail to realize evolution has ...

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 ...

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 chickadee is perched on a snowy stump with seed mix in winter park and eating.© Saeedatun/Shutterstock.com Birds don’t get enough credit for the magnificent creatures they are. Many ...

Chickadees replace 30 percent of their old neurons to make room for new memories in their hippocampus. The expansion of the hippocampus is one of the most impressive aspects of any bird. Seasonal ...