The Cornell Lab of Ornithology today announced the release of a new online tool for studying biodiversity and the ...

I’m counting, but not counting. The highlight, though, has to be those those gentleman thugs, the greater black-backed gulls ...

Take a peek into the always entertaining lives of birds, from intimate moments with mates to fierce fights for territory.

New information on the Audubon’s 126th Annual Christmas Bird Count shows there were more citizen birdwatchers who saw more species of birds.

LA JUNTA, Colo. — A highly lethal virus that spreads easily in some birds is causing a significant die-off of an invasive dove species in the lower Arkansas River valley near La Junta and Rocky Ford, ...

A: Before we calculate CBC trends for a species, we divide the raw number of birds counted by a function that describes the ...