72 TETRAONID^. 



C canadensis by having the upper tail-coverts tipped with white 

 instead of grey. Total length 14 inches, wing 7, tail 4*4, tarsus 1*6. 

 Hub. "West side of northern Eocky Mountains, ranging westwards 

 to the coast-ranges. 



a. (S ad. sk. N. America. Dr. Richardson [P.]. 



h, Juv. St. N. W. America. Gould Coll. 



c-k. c? 2 ad., imm., W. side Rocky Mts. J. K. Lord, Esq.[P.]. 

 pull. sk. et St. 



5. FALCIPENNIS. 



Type. 



Falcipennis, Elliot, P. Ac. Philad. 1864, p. 23 .... F. falcipennis. 



Tail composed of 16 feathers, moderately long and rounded. 



Outer primaries attenuated and sickle-shaped ; Ist primary mucl; 

 shorter than the 2nd, and falls between the 7th and 8th ; 4ti 

 is slightly longer than the 3rd and 5th. 



Tarsus shorter than the middle toe and claw by the length of tie 

 claw. 



Axillaries long, dark grey mixed with white. 



Range. North-eastern Siberia ; Kamtschatka ; Saghalien Islaid. 



1. Falcipennis falcipennis. ' 



Tetrao canadensis, var. franklinii, Middend. Sibir. Peis., Aves, p.202, 



pi. 17. fig. 4 (1851) [Daoui-ia]; Schr. Pels. Amur-L. i. p. 399 



(1859). 

 Tetrao falcipennis, Hartl. J. f. 0. 1855, p. 39 ; Grap, List of B. it. v. 



Gall. p. 87 (1867) ; id. Hand-l. B. ii. p. 276 (1870). 

 Tetrao canadensis, Padde, Ost-Sib. ii. p. 301 (1863). 

 Teti-ao franklinii, Sivinh. P. Z. S. 1863, p. 338 [Amoorland]. 

 Falcipennis hartlaubi, Elliot, P. Ac. Philad. 1864, p. 23 ; id. Mon. 



Tetr. pi. xi. (1865). 

 Canace falcipennis, Tacz. Bull. Sac. Zool. Fr. i. p. 242 (1876) ; Bogd. 



Consj). Av. Moss. fase. i. p. 30 (1884). 



Adult male. General colour above black, barred with greyia and 

 sandy buff ; top of the head dark grey, indistinctly mottled with 

 black; mantle black, tipped with sandy buff; lower back,'ump, 

 upper tail-coverts, scapulars, and wing-coverts mottled audedged 

 with sandy buff, the scapulars, lower back, and rump wittwhite 

 shaft-spots at the extremity; primaries, primarj'-coverts, scond- 

 aries, and the outer wing-coverts with the ground-colour I'own, 

 the secondaries narrowly tipped and margined round the ouir web 

 with white ; chin, throat, and cheeks black, a small patch )ehind 

 the eye and the base of the throat mostly white ; fore part ad sides 

 of upper neck black, barred with bufif ; fore part and sides o lower 

 neck dark smoky black, becoming paler on the chest and mldle of 

 the belly ; rest of undorparts smoky black, each feather witla wide 

 subterminal white cross bar, gradually changing into hearshaped 

 spots on the sides and flanks ; vent white ; i;nder tail-cov<ts and 

 tail black, widely tipped with white, except the two midle tail- 

 feathers, which have the extremities mottled with greyish ad with 

 an irregular subterminal white spot. Total length 16'finches, 

 wing 7'2, tail 4-7, tarsus 1-4. 



