The chickadee flew right past me to a tree 15 feet away and disappeared into a hole in a gnarly ponderosa pine. It emerged less than a minute later, watched me for a moment and left to collect more ...

Now is the time of the year black-capped chickadees seek nest sites for the breeding season. This species is a year ‘round resident and is considered an obligate cavity nester and will use nest boxes ...

Ben Sonnenberg, a doctoral student in the Ecology, Evolution and Conservation Biology program, studies chickadees with Vladimir Pravosudov. Sonnenberg has coauthored many publications about the ...

In June, if you’re observant, a window of nature opens for a short time. By now, common songbirds like chickadees and American robins have finally coaxed their growing young out of their nests and ...

With the banding of our final mountain chickadee nest at the CU Boulder Mountain Research Station this morning, the 6th season of the Boulder Chickadee Study comes to an end. Thanks to the hard work ...

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 ...

On nearly every one of my daily walks in the neighborhood in January, a black-capped chickadee calls its name. It doesn’t matter if it’s snowing, cold, raining, gloomy or sunny, and if no other birds ...