90 TETRAONID^. 



Key to the Species, 



A. P'eatliers of the breast black, margined with 



white and sometimes a white spot in the 

 middle. 



a. Chiu and throat black bonasia S , p. 90. 



b. Chin and throat mostly white bunasia $ , p. 90. 



B. Feathers of the breast saudy grey, with 



narrow black bars. 



c. Chin white ; throat black, tipped with dark 



red ; chest reddish black, barred and 



tipped with grey griseive7itris J , p. 93. 



d. Chin white ; throat black, tipped with 



buff; chest black, irregularly barred with 



rufous and tipped with grey griseiventris 5 , p. 93. 



C. Feathers of the breast black, barred and 



tipped with white ; outer tail-feathers black, 

 with wide-set white bars and white tips. 



e. Chin and throat black severtzovi S » P- 93. 



/. Chin and throat buff, tipped with black . . severtzovi 5 ? p- 93. 



1. Tetrastes bonasia. 



Hazel Hen, Will. Orn. p. 126, pi. 31 (167ei) ; Lloyd, Game B. Siced. 

 ^- Xonc.-p. 112, pi. (1867). 



La Gelinote, B'Aitbent. PL Enl. [nos. 474, 475] ; Briss. Orn. i. 

 p. 191 (1760) ; Buff. Hist. Nat. Ois. ii. p. 274 (1772). 



Tetrao bonasia, i?w«. S. N. i. p. 275 (1766) ; Gh)i. S. N. i. pt. ii. p. 753 

 (1788): Lath. Ind. Orn. ii. p. 640 (1790); Beseke, Beytr. Vog. 

 Kiui. p. 70 (1792) ; Bechst. Nat. Deutschl. iii. p. 500 (1793) ; Pall. 

 Zoogr. Rossu-As. li. p. 70 (1811) ; Temm. Pig. et Gall. iii. pp. 174, 

 706 (1815) ; Nilss. Orn. Svec. i. p. 305 (1817) : Steph. in iShems 

 Gen. Zool. xi. p. 271 (1819) ; Roua; Orn. Proven, p. 29, pi. 254 

 (1830); Navm. Nat. Tog. Dentsehl. vi. p. 358, pi. 158 (1833); 

 Dhnid. Voy. Buss. Merid. iii. p. 219 (1840) ; Midd. Sibir. Reis. ii. 

 pt. ii. p. 289 (1851) ; Sikinz, Nat. Vog. p. 158, pi. 78 (1853) ; 

 Sunder. Svensk. Fogl. pi. xxxiii. tigs. 4, 5 (1856) ; Ntlss. Skand. 

 Faun., Fog. ii. p. 40 (1858) ; Comjmnyo, Hist. Nat. Pyren. iii. 

 p. 198 (1863) ; Bree, B. Eur. iii. p. 203, pi. (1867) ; David, N. 

 Arch. Mus. Bidl. iii. p. 37 (1867) [MongoUa] ; Radakoff, Hand- 

 Atl. Map 15 (1876) [Whole distribution]; Palm. J. f. O. 1876, 

 p. 42 [Finland] ; Bau, etc. J. f. O. 1877, p. 325 [Germany], 1878, 

 p. 417 ; Finsch, Lhis, 1877, p. 64 [Obi R.] ; Finsch, Terh. ges. 

 Wien, xxix. p. 233 (1880) [Obi R.] ; Cab. J. f. 0. 1880, pp. 70, 

 393, 1882, p. 90, 1883, p. 61, 1886, p. 347, 1887, p. 668 [Ger- 

 many] ; Seebohm, Ibis, 1882, p. 380 [Arch;mgel] ; id. Ibis, 1884, 

 p. 3o [Yezo] ; Csuto, Zeit. ges. Om. ii. p. 482 (1885) [Himyad] ; 

 Meyer ^ Helm, Zeit. ges. Orn. iv. p. 371 (1888) ; Seebohm, B.Jap. 

 p. 373 (1890) ; Altum, J.f. O. 1891. p. 103; Hartert, Ibis, 1892, 

 p. 511 [E. Prussia] ; Cami^bell, Ibis, 1892, p. 248 [Corea]. 



Tetrao betulinus, Scop. Ann. I. p. lit), no. 172 (1769) : Gm. S. N. i. 

 pt. ii. p. 749 (1788) ; Lath. Ltd. Orn. ii. p. 637 (1790). 



Birch Grouse, Lath. Gen. Syn. ii. pt. ii. p. 735 (1783) ; id. Gen. Hist. 

 B. viii. p. 245(1823). 



Hazel Grous, Lath. Gen. Syn. ii. pt. ii. p. 744 (1783) ; Penn. Arct. 

 Zool. ii. p. 317 (1785) ; Lath. Gm. Hist. B. viii. p. 242 (1823) ; 

 Chapman, Wild Spain, p. 3 (1893) [Basque Provinces, N. Spain]. 



