Length 10–14.8". Adult: medium-size with a long, forked tail. The male’s tail is longer than the female’s. Entirely pale gray head and back; extensive white in outer tail contrasts with ...

Upperparts gray, unstreaked; underparts grayish white, unstreaked; long black tail has white outer tail ... including suburban neighborhoods. Migration: birds in the northern portion of range ...

The smallest bird in the grouse family, the white-tailed ptarmigan is also one of the few animals that lives on alpine mountaintops throughout its entire life. Every part of this ptarmigan is adapted ...

DESCRIPTION: Adult white-tailed ptarmigan typically grow to 30 to 34 centimeters in length and weigh 345 to 425 grams. The bird is distinguishable from other species of grouse by its perpetually white ...