Add Yahoo as a preferred source to see more of our stories on Google. Mountain chickadees are unusual in having more complex calls than songs. Vladimir Pravosudov I approach a flock of mountain ...

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 ...

Wonder about the difference between a grackle and a starling? Do colorful warblers catch your fancy? What gave the Cooper's hawk its name? Ask me -- The Bird Lady. I'm the science editor at the ...

Members of the Pravosudov lab catch and release resident chickadees to attach identifying bands that allow the researchers to track individual birds.(Sofia Haley) I spend my days out at our field site ...