Crows and ravens may look similar, but they have distinct differences. Ravens are larger with chunkier beaks, longer shaggy feathers on their necks, deeper croaks, and more acrobatic flight patterns.
Biologists already knew the corvid family–it includes crows, ravens, rooks, magpies and jackdaws–to be among the smartest of all birds. But this remarkable piece of behavior–it features in ...
Study of vocalizations, bill structure and size, tail shape, and overall structure of this species will greatly aid in the identification of other crows and ravens. Regional variation in size of ...