BIRDS OF NORTH AND MIDDLE AMERICA 197 



ACCIPITER STRIATUS PEROBSCURUS Snyder 



Pacific Sharp-shinned Hawk 



Like Accipiter s. velox in size, but darker, especially in jiivenal 

 plumage. 



Adult male. — Similar to that of A. s. velox, but slightly darker, 

 especially below, the whitish on the abdomen more restricted, the 

 light bars on the feathers of the breast and sides reduced, this reduc- 

 tion particularly marked on the tibia; toes and tarsus yellow; iris 

 reddish; bill slate; cere greenish. Not definitely separable in this 

 plumage. 



Adult female. — Slightly darker above than corresponding specimen 

 of A. s. velox and with less whitish below but not certainly separable 

 in this plumage. 



Juvenal male. — Similar to that of A. s. velox, but upperparts aver- 

 aging darker fuscous to fuscous-black, the pale bands on the tail 

 hair brown; white markings on the scapulars, inner secondaries, and 

 on the occiput more concealed and smaller; the rusty tips of the dorsal 

 feathers darker, more russet; underparts more heavily and darkly 

 streaked than in A. s. velox, the general effect being more dark than 

 light color; iris yellowish gray, toes and tarsi greenish yellow; bill 

 slate to blue; cere greenish. 



Juvenal female. — Similar to the juvenal male but larger; iris yel- 

 lowish, toes and tarsi yellow; bill slate to blue; cere greenish. 



Natal down. — Not described. 



Adult male. — Wing 174; tail 130; culmen from cere 10.1; tarsus 50; 

 middle toe without claw 30.5 mm. (1 specimen). 



Adult female. — Wing 206; tail 170; culmen from cere 12; tarsus 

 56.5; middle toe without claw 34.5 mm. (1 specimen). 



Range. — Breeds in the Queen Charlotte Islands; possibly also in 

 others of the islands and adjacent mainland coast of British Columbia 

 and southeastern Alaska (from Comox on Vancouver Island and 

 Brackendale on the mainland of British Columbia north to Yakutat 

 Bay, Alaska), south to the Olympic Peninsula of Washington. 



In winter from the Queen Charlotte Islands to Vancouver Island 

 (Comax and Cedar) and to the mainland of British Columbia (Hazel- 

 ton, Rainbow Mountains) south to Oregon (Tillamook and Portland). 



Type locality. — McClinton Creek, Massett Inlet, Graham Island 

 (Queen Charlotte Islands), British Columbia. 



Accipiter fuscus Dall and Bannister, Trans. Chicago Acad. Sci., i, 1869, 271, 

 part (Sitka, Alaska). — Ridgway, Proc. Acad. Nat. Sci. Philadelphia, 1870, 

 141, part; Proc. U. S. Nat. Mus., iii, 1880, 193, part; Norn. North Amer. 

 Birds, 1881, No. 432, part. — Coues, Key North Amer. Birds, 1872, 212, 

 part; Check List North Amer. Birds, 1873, No. 338, part; Birds Northwest, 

 1874, 333, part; Check List North Amer. Birds, ed. 2, 1882, No. 494, part. 



Accipiter fuscous Coues, Key North Amer. Birds, ed. 2, 1884, 528, part. 



