Carrion crows (Corvus corone) can control the number of vocalizations they produce, counting up to four in response to visual and auditory cues, according...
By 4 months of age, the cognitive performance of common ravens (Corvus corax) in experimental tasks is similar to those of two great ape species, chimpanzees...
Carrion crows (Corvus corone), a species of songbird in the family of Corvidae, can voluntarily control the release and onset of their calls, suggesting...
