BIRDS OF NORTH AND MIDDLE AMERICA 625 



to fuscous, the pale margins and tips washed with cinnamon to pinkish 

 buff; underparts as in immature plumage, but entirely washed \vith 

 pale pinldsh buff to pale ochraceous buff; rec trices as in the adult; -^ 

 cere, orbits, and bill pale bluish, tip of bill black; tarsi and toes pale 

 bluish, soles tinged yellowish, claws black (in some cases cere and feet 

 tinged with yellow). 



Natal down. — Pure white. 



Adult male— Wing 289-313 (299.4); tail 159-179 (169.6); culmen 

 from cere 18-20 (18.8) ; tarsus 50-57 (55.9) ; middle toe without claw 

 41.5-45.5 (43.7 mm.).^ 



Adult female —Wing 331-357 (342.8); tail 185-201 (189.7); culmen 

 from cere 20.5-26 (22.2); tarsus 57-64 (60.7); middle toe without 

 claw 49-53 (50.8 mm.). ^'^ 



Range. — Resident in the Transition and Austral Zones from the 

 valleys of central and southern British Columbia (Osoyoos Lake; 

 Merritt, Moon's Ranch, Chilcotin; Deer Park, Columbia River; lower 

 Frazer Valley; Chilliwack; Okanagan Landing); southern Alberta 

 (Little Sandhill Creek); and southern Saskatchewan (St. Louis); 

 south through Washington (Okanogan County; Brook Lake; Grand 

 Coulee; Wallula; Lake Chelan; rare west of the Cascades); Idaho 

 (Birch Creek; Blackfoot Mountains); Montana (Cone Butte; Camp 

 Baker; Two Forks Milk River; Billings; Buffalo); North Dakota 

 (Towner County; Mauvais Coulee; Red River Valley; eastern McKen- 

 zie County; Little Missouri River); Oregon (Camp Harney; Wallows; 

 Willamette Valley; Eagle Pomt; Dallas; Fort Klamath; Hay Creek; 

 Riverside); Nevada (Ash Meadows; Ruby Mountains; Humboldt; 

 Carson; Quina River; Blair); Utah (Bear River; Echo Canyon; 

 Wasatch Mountains; Salt Lake Valley; Parleys Peak); Wyommg 

 (Yellowstone Park; Cheyenne; Fremont Peak); South Dakota (Hard- 

 ing County); Colorado (Moffatt County; Boulder County; Denver; 

 Garden of the Gods; South Park); Kansas (rare in the eastern, not 

 uncommon in the western part of the State) ; California (San Miguel 

 Island; Santa Barbara; Fresno County; Furnace Creek Ranch, 

 Death Valley; Yosemite; Baldwin Lake; San Bernardino Alountains; 

 Stockton; Modoc County; Lassen Peak; Summit Meadows; Sacra- 

 mento Plams; Petaluma; Shasta Valley; Bieber; Resting Springs; 

 Panamint Valley); Arizona (Tucson; Camp Bowie; San Francisco 



*8 It seems unlikely that the juvenal and adult rectrices should be alike and an 

 intermediate different plumage come between them, but that is the only conclu- 

 sion I can come to on the basis of a long series of specimens (53 birds). 



" Seventeen specimens from California, Arizona, Mexico (Chihuahua and Baja 

 California), Nevada, New Mexico, North Dakota, Oregon, Colorado, Idaho, and 

 Kansas. 



'" Eighteen specimens from Sonora; California; Arizona; Nevada; Oregon; 

 Wyoming; Utah; Kansas; Montana; and Saskatchewan. 



