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 ...

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 ...

Watching chickadees flit through the treetops is like witnessing master acrobats at work. These adorable birds duck and dodge through branches as they hunt down small insects. Not only are these birds ...

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, ...

Sofia Marie Haley does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...