NO. 2255. CATALOGUE OF SIBERIAN BIRDS— RILEY. 609 



2. LAGOPUS RUPESTRIS, subspecies? 



Three males and one female, 67 miles west of Verkhni Kolymsk, 

 May 6, 8, 14, and 19, 1915; one male and one female, 60 miles west 

 of Verkhni Kolymsk, May 20, 1915. 



A}1 of these are in the white winter plumage and only in two males 

 and one female are there any feathers of the summer plumage ap- 

 pearing; in the case of the males (taken May 19 and 20) only a few 

 feathers on the top of the head, but in the female (May 20) there 

 are numerous feathers on the back, head, wing-coverts, and upper 

 breast, mostly concealed by the white feathers, however. 



After comparing these with a series from Alaska I can find no 

 differences in size; they are not in the right stage of plumage to 

 show whether there is any difference in color, so for the present 

 the Kolyma form will have to remain in doubt. 



In the Tomus Chaja Mountains ; winter resident. — C. A. 



3. TETRAO PARVIROSTRIS PARVIROSTRIS Bonaparte. 



The head of a male, Verkhni Kolj^msk, April 13, 1915, and a 

 female, Verkhni Kolymsk, April, 1915. 



We saw one in September on the Lesser Annuj, 50 versts [33 miles] east of 

 the Kolyma, where the larch increases in size and quantity ; and another in 

 the same locality in October. None around Nijni Kolymsk and they are not 

 common anywhere in the lower valley. They are common in the upper valley 

 and are used for food by the Yakuts. In April in the foothills of the Tomus 

 Chaja Mountains one morning a boy killed three males with his rifle. During 

 a three weeks' visit to the priest at Verkhni Kolymsk several were brought in 

 to him by the natives. — C. A. 



4. TETRASTES BONASIA KOLYMENSIS Buturlin.^ 



Four males, Verkhni Kolymsk, April 12 and 20, 1915; two males 

 and one female, 67 miles west of Verkhni Volymsk, May 8 and 17, 

 1915. 



This series is very uniform and quite different from any of the 

 forms with which I have been able to compare it. The form I 

 named Tetrastes honasia amurensis ^ approaches it in certain par- 

 ticulars, but is quite distinct, and as the differences have already 

 been pointed out in the description they need not be repeated here. 

 Since I published the above description Mr. S. A. Buturlin has pub- 

 lishd a paper quoted in the footnotes, revising the birds of this genus. 

 In this revision he renames the bird I described from Manchuria, 

 but fortunately gave it the same name. He also names the bird from 

 Ussuriland, calling it Tetrastes honasia ussuriensls.^ Seebohm's de- 

 scription * of Tetrao septentrioTuilis is very unsatisfactory. He does 



1 Messager Oruith., vol. 7, No. 4, 1916, p. 226. 

 siProc. Biol. Soc. Wash., vol. 29, 1916. p. 17. 

 ^Messager Ornith., vol. 7, No. 4, 1916. pp. 222 and 227. 

 * Ibis, 1884, p. 430. 



3343— 19— Proc.N.M.vol.54 40 



