700 TETRA 0TETRASTES 



under shelter of a rock, and the eggs, 8 to 10 in number, are 

 usually deposited in May or early in June, and resemble those 

 of T. tctrix both in ground-colour and markings, but are con- 

 siderably paler. In size they vary from 178 by 1*26 to 2*7 by 

 1-37. 



978. SIBERIAN SPRUCE GROUSE. 

 TETRAO FALCIPENNIS. 



Tetrao falcipennis, Hartl. J. f. 0. 1855, p. 39 ; (Ogilvie Grant), Cat. 

 B. Br. Mus. xxii. p. 72 ; (Tacz.), F. 0. Sib. 0. p. 770 ; Tetrao 

 canadensis vnr. franklini, Middend. Sib. Keise, ii. part 2, p. 202, 

 Taf. xvii. fig. 4 (1851) ; Falcipennis Tiartlaubi, Elliot, Monogr. Tetr. 

 pi. xi. 



Dikuskka, Russ. ; Kardka, Tungus. 



$ ad. (E. Siberia). Head and neck black, the feathers tipped with 

 pale dull brown ; sides of head, chin, upper throat, and lower neck almost 

 uniform black ; upper parts blackish vermiculated with brown, the 

 scapulars and wings sparingly marked with white ; lower back, rump, and 

 upper tail-coverts with thick white stripes ; tail black, the middle feathers 

 terminally vermiculated with brownish, the rest broadly terminated with 

 white \ lower throat marked with buffy white ; under parts black with a 

 subterminal white band on the feathers ; middle of abdomen black ; 

 vent nearly white ; thigh and leg-feathers smoky brownish ; under tail- 

 coverts black, broadly tipped with white ; feet and bill dark horn, 

 the lower mandible paler ; iris yellowish brown ; outer quills tapered, 

 narrow, and sickle-shaped. Wing 7 '2, tail 4'7, tarsus 1*4 inch. The 

 female has the head, neck, and upper parts rufous, barred and vermiculated 

 with black, and the under parts rufous varied with black and white. 



Hob. Kamchatka, North-eastern Siberia, the lower Amoor, 

 and the island of Saghalien. 



In habits it resembles Tetrao canadensis, to which species it is 

 nearly allied, and like it frequents conifer woods and is extremely 

 tame, so much so that it is often killed by the natives with a 

 stick. I find nothing on record respecting its nidification. 



TETRASTES, Keys, and Bias., 1840. 



979. HAZEL HEN. 

 TETRASTES BONASIA. 



Tetmstes lonasia (Linn.), Syst. Nat. i. p. 275 (1766) ; (Naum.), vi. p. 358, 

 Taf. 158 ; David and Oust. Ois. Chine, p. 390 ; (Seebohm), B. Jap. 

 Emp. p. 373 ; Ogilvie Grant, Cat. B. Br. Mus. xxii. p. 90 ; Tacz. 

 F. O. Sib. 0. p. 772 ; Bonasia europcea, Gould, B. of E. iv. pi. 251 ; 

 B. letulina (Scop.), Ann. i. p. 119 (1769) ; Dresser, vii. p. 193, pi. 486. 



