3. TETRAOGALLrS. 



105 



head, throat, and neck very dark grey ; chin, middle of throat and 

 neck and chest pure white, the latter divided from the rest of the 

 underparts by a band of dark grey. The breast, belly, sides, flanks, 

 and under tail-coverts white, margined with black on the sides, 

 except some of the lower flank-feathers, which have only one black 

 striiie down the middle. Thighs a mixture of grey and buff. Tail 

 blackish, slightly tipped -with rufous, the centre pair of feathers 

 somewhat vermiculated with rufous. Iris brown or reddish brown. 

 Bill orange-red. I^egs and feet coral-red. Tarsus provided with a 

 strong blunt spur in the male *. Total length 20 inches, wing 10*8, 

 tail 6"2, tarsus 2"5. 



Younfjer specimens differ from the adults in having the sides of 

 the throat and neck black vermiculated with buff, and the whole 

 of the chest buff vermiculated with black, and with usually a few 

 white feathers of the adult plumage intermixed. 



In quite i/oituff specimens there is a white superciliary streak 

 edged above and below with black ; the wing-coverts and scapulars 

 are much more coarsely marked with buff on a black ground than 

 in the adult, and each feather, together with those of the upper and 

 lower back, has a buff spot at its extremit)' : the breast and rest of 

 the underparts arc whitish buff', without any black streaks ; the 

 primaries are mottled with buff' at the tip, and the terminal part of 

 the outer web of the secondaries is margined and mottled with 

 white. 



Ilah. Thibet, ranging east to the Sanju Pass, E. Turkestan, 

 west to Moupiu, north to Kansu and Koko-nor, and south to the 

 Himalayas. 



a. 2 ad. sk. 



b. 2 imm. sk. 



c. d. 2 iiom. et 

 juv. sk. 



e. 9 imiu. sk. 



f. 5 imm. sk. 

 g-k. J ad. et 



imm. sk. 

 Ir. S 2 aJ- et 



imm. sk. 

 s. 2 imm. sk. 

 t-v. d 2 nd. et 



imm. sk. 

 ?<"-«'. cJ ad., imm. 



et juv. ak. 



l^addk (Capt. Strac/tey). India Museum 



[P.]. 



Sahti Pass, Sept., 17,500 ft. (J. Bid- Ilimie Coll. 



du/ph). 



Sanju Pass, Kuen Lun Mts., Aug., Hume Coll. 



Sept. {G. Henderson). 



Yarkaiid, Oct. (G. Henderson). Hume Coll. 



Sikliim. Hume Coll. 



Interior of Sikhim, Aug., Oct. (L. Hume Coll. 



MandeUi). 



Native Sikhim, July, Dec. Hume Coll. 



Darjeeling. Hume Coll. 



Thibet. Hodgson Cull 



(Types of the species.) 



Thibet, Sept., Nov. {L. Mandelli). ' Hume Coll. 



* There is no doubt tli.it Gould was right, and that the adult male and 

 female axv perfectly similar in phmiage. I have examined three specimens 

 obtained bv Prje\alsky in !X. Thibet and Kansu. and described by him as adult 

 fen-.ales, and find I hey are all immature birds, and one oC them is no doubt 

 the identical specimen described from Kansu in Kowlev's Orn. Misc. ii. 

 p. 427. 



