When it comes to birds with white heads, black-tailed gulls are quite easy to recognize. They have white bodies, wings that go from light gray to dark brown, and dark brown tail feathers.

Upperparts gray, unstreaked; underparts grayish white, unstreaked; long black tail has white outer tail feathers ... Migration: birds in the northern portion of range and at higher elevations ...

With their large size, bold pied plumage, and fondness for open areas, black-billed ... outer tail feathers. Flight: relatively slow, with steady, rowing wingbeats, but the birds are easily ...

A wildlife rehabilitator caring for the injured raptor said it could take two or more years for the feathers to return and give flight.

The bird is distinguishable from other species of grouse by its perpetually white tail feathers. The rest of the ptarmigan?s plumage changes seasonally, from a predominantly grayish brown during the ...