THE SHARP-WINGED GROUSE. 57 



Adult Female. — Distinguished by having the chin and throat 

 rufous, spotted with black. 



Range. — The west side of the northern Rocky Mountains, 

 extending westwards to the coast ranges. 



Habits. — The habits of this species are apparently very simi- 

 lar to those of the Canada Grouse, which it replaces to the west 

 of the Rocky Mountains. It is found in the almost inpene- 

 trable and densely-timbered mountain ranges, generally, at an 

 altitude of from 5,000 to 9,000 feet, in the neighbourhood of 

 running water or swampy valleys. It is said to be a remark- 

 ably fearless and stupid bird, frequently allowing itself to be 

 knocked off the trees with sticks or stones, and it is often 

 caught by hand. 



THE SHARP-WINGED GROUSE. GENUS FALCIPENNIS. 



Falcipen?iis, Elliot, P. Ac. Philad. 1864, p. 23. 



Type, F. fakipemiis (Hartl). 



Toes naked and pectinate along the sides. Tail moderately 



long and rounded, composed of sixteen feathers. The outer 



flight-feathers attenuated and sickle-shaped. 



I. THE SHARP-WINGED GROUSE. FALCIPENNIS FALCIPENNIS. 



Tetrao falcipennis^ Hartl. J. f. O. 1855, p. 39. 



Falcipetinis hartlaubi^ Elliot, Proc. Acad. Philad. 1864, p. 23; 



id. Monogr. Tetraon. pi. xi. (1865). 

 Falcipennis falcipennis^ Ogilvie-Grant, Cat. B. Brit. Mus. xxii. 



p. 72 (1893). 



Adult Male.— Chest uniform smoky-black. Total length, 16-3 

 inches; wing, 7-2; tail, 47; tarsus, 1-4. 



Adult Female, — Chest black, barred with buff. Total length, 

 147 inches; wing, 7-2; tail, 4-3 ; tarsus, 1-4. 



Range. — North-eastern Siberia, Kamtschatka, and Saghalien 

 Island. 



In general appearance and size this species resembles the 



