French: Lagopède à queue blanche German: Weißschwanz-Schneehuhn Spanish: Lagópodo coliblanco
Tetrao (Lagopus) leucurus
Rocky Mountains, latitude 54° N
Subspecies and Distribution
L. l. peninsularis
Chapman, 1902 – mountains in S Alaska S to Kenai Peninsula (NW USA) and in Yukon and Northwest Territories (W Canada).
L. l. leucura
(Richardson, 1831) – Rocky Mts in British Columbia and SW Alberta (SW Canada).
L. l. saxatilis
Cowan, 1939 – Vancouver I.
L. l. rainierensis
Taylor, 1920 – Cascade Range, in Washington (W USA).
L. l. altipetens
Osgood, 1901 – Rocky Mts from Montana to N New Mexico (WC USA).
31–34 cm; male 326–1300 g, female 358–840 g; mass of males increases from Sept until late Apr and then decreases during spring. Only Lagopus with... read more
Both sexes give ‘flight scream’, a series of “ku-ku-KII KIIER” notes... read more
Alpine tundra; in Alaska, typically on steep slopes and ridges, often around cirques, with numerous... read more
Food and feeding
In Alaska, where competes with the other two Lagopus, much of winter food consists of alder catkins (Alnus); willow (... read more
Lays May–Jul, with relative winter snow depth and temperatures strongly influencing nest initiation and hatching dates, and mean... read more
Only limited altitudinal movements in winter, when species generally forms single-sex flocks (young... read more
Status and conservation
Not globally threatened (Least Concern). Race saxatilis listed as Vulnerable in Canada, although most recent data from its small range, on Vancouver I, indicate that... read more
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