Illustration from National Geographic's Field Guide to the Birds of North America
August 22, 1805, along the Lemhi River, Idaho.
Pigeon-size, with flashing black, white, and gray pattern. Light gray, with dark eye and long, sharply pointed bill. Black wing with large white wing patch at trailing edge; black tail with white outer tail feathers. Face white from forehead to chin; belly white. Length: 12-13 in (30-33 cm).
A guttural kraaaa.
Stands of juniper and ponderosa pine or of whitebark pine and larch on high mountain ranges, near the tree line.
Resident in southern British Columbia and Alberta south throughout pine-clad western mountains to California and Colorado.