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 ...

Mountain chickadees struggle with snow extremes. Benjamin Sonnenberg. 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 ...

NORTH SLOPE, Alaska — “Chick chick whirrr, chick whirrr.” Although it was a recorded birdsong that chattered through each of the poplar stands we entered, I still occasionally caught myself believing ...

Ms. Renkl is a contributing Opinion writer who covers flora, fauna, politics and culture in the American South. Spring is proceeding apace in this yard, despite my worst fears. For 28 of the 29 years ...

The 2025 summer field season has flown by with the last chickadee nests at the Mountain Research Station of the season scheduled to be banded on July 12. Folks have been busy collecting data for their ...

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 ...

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 ...

Benjamin Sonnenberg receives funding from the National Science Foundation. Wet snow pelts my face and pulls against my skis as I climb above 8,000 feet in the Sierra Nevada of eastern California, ...