Their migration flocks could range from 100 birds up to tens of thousands ... in because the entire bird is glossy black! The ...

One of the most common winter sparrows, the white-crowned typically occurs in flocks, which may involve more than 100 birds ... Adult: black-and-white striped crown. Immature: tan and brownish ...

An unusually long-tailed black-and-white corvid with a black bill ... Flight: relatively slow, with steady, rowing wingbeats, but the birds are easily able to quickly change direction in flight.