Global Range: (>2,500,000 square km (greater than 1,000,000 square miles)) BREEDS: western and north-central Alaska (north to the Seward Peninsula and Brooks Range), central Yukon, British Columbia, and southwestern Alberta south to southern Alaska (including St. Matthew, Nunivak, and the Pribilof and Aleutian islands), and through the Cascades, Sierra Nevada, and Rocky Mountains to northeastern Oregon, east-central California (to Tulare County), central Idaho, and northwestern Montana, also in the Commander Islands (AOU 1983). WINTERS: Aleutians, southern mainland Alaska (rarely), British Columbia, southern Alberta, and southwestern Saskatchewan south to eastern California, central Nevada, central Utah, northern New Mexico, and northwestern Nebraska (AOU 1983).
Rights Holder: NatureServe