In Colorado’s mountains, really big black birds are either American crows or common ravens, both of which can be found year-round throughout the state and both of which are often mistaken for the ...

Part two on the Bay Area's ravens and crows looks at the reasons behind the local population boom and its effects. To read part one, go to bit.ly/y9l6nL. Not so long ago, common ravens were uncommon ...

On a recent trip into the Alaskan wilderness I had the opportunity to listen and wonder about animal communication. I marveled at the thunderous breaths and splashes of humpback whales, though I could ...