BIRDS OF NORTH AND MIDDLE AMERICA 101 



Adidt male, autumn plumage. — Similar to that of L. I. alascensis but 

 slightly grayer above, the terminal band of the feathers being ashy to 

 wood brown and the bill slenderer. 



Adult male, zvinier plumage. — Similar to that of L. /. alascensis but the 

 bill slenderer. 



Adtdt female, summer plumage. — Similar to that of L. I. alascensis 

 but with less rufescent tone, the black areas larger and the brown mark- 

 ings somewhat duller, the feather edgings more grayish and the bill 

 slenderer. 



Adult female, autumn plumage.- — Similar to that of L. I. alascensis but 

 darker, more grayish above, and the bill slenderer. 



Adult jcniale, winter plumage. — Similar to the corresponding plumage 

 of L. I. alascensis but the bill slenderer. 



First zvlnter plumage (sexes alike). — Similar to that of L. I. alascensis 

 but the bill slenderer. 



Juvenal pbimage (sexes alike). — Like that of L. I. alascensis but 

 very slightly less brightly orange-brown, slightly more gra5rish, and with 

 the dark markings on the underside more broken into spots, not forming 

 fairly complete b^-rs. 



Downy young. — Indistinguishable from that of L. I. alascensis. 



Adult male.— Wing 178-201 (190.9); tail 112-126 (120); bill from 

 anterior end of nostril to tip 9-11.5 (10.4) ; width of bill at gape 10.5-13 

 (12.2) ; height of bill at angle of gonys 9-11.2 (9.8 mm.).^ 



Adult female.— Wing 16S-203 (180); tail 94-121 (106.8); bill from 

 anterior end of nostril to tip 8.5-11.2 (9.7) ; width of bill at gape 10.6-13.5 

 (12) ; height of bill at angle of gonys 8.3-10.1 (9.5 mm.).* 



Range. — Breeds from northwestern and central Mackenzie (Franklin, 

 Great Bear and Great Slave Lakes, Fort Resolution, Fort Simpson, Fort 

 Anderson) and Yukon (head of Coal Creek) to northeastern Manitoba 

 (Churchill), northern Ontario and south-central Quebec to Anticosti 

 Island, south through northern and central British Columbia (inter- 

 grading in nortliwestern British Columbia with Lagopus lagopus alex- 

 andrae), central Alberta, central Saskatchewan, and central Ontario. 



\\'inters throughout most of its breeding range and south to Cumber- 

 land House and Fort Carleton, Saskatchewan ; Norway House and Grand 

 Rapids, central Manitoba; Cochrane and Martin Falls, central Ontario; 

 Lake St. John, Maniwaki, and Bonne Esperance, Quebec. 



Casual in Montana (Midvale, Glacier National Park) ; North Dakota 

 (Killdeer Mountains, Dunn County) ; Minnesota (Sandy Island, Lake of 

 the Woods) ; Wisconsin (Racine) ; ? Michigan (Keweenaw Point) ; New 



^ Twenty-two specimens from Yukon, ^lackenzie, British Columbia, Alberta, and 

 Hudson Bay. 



■* Twenty-three specimens from Mackenzie, British Columbia, .Alberta, and Hud- 

 son Bay. 



653008° — 16 8 



