THE SIBERIAN HOUSE-MARTIN. 
311 
than lat. 67°. Both on the banks of the Ob and the Yen-e-say' large 
colonies of these birds were frequent. 
The habits of this species are similar to those of C. sinensis j and it nests 
in precisely the same manner in the banks of rivers. 
Mr. Davison observed on Mooleyit mountain in Tenasserim a species 
of Ptyonoprogne, but he was unable to secure specimens. The birds of 
this genus resemble Cotile in being generally of a brownish colour, but 
they differ conspicuously in having white spots on the tail ; they frequent 
cliffs and precipices. 
Genus CHELIDON, Boie, 
296. CHELIDON LAGOPODA. 
THE SIBERIAN HOUSE-MARTIN. 
Hirundo lagopoda, Pall. Zoogr. Rosso-Asiat. i. p. 532. Chelidon urbica, apud 
Tickell, J. A. S. B. xxiv. p. 277 (footnote) ; Bl. B. Burm. p. 127 ; Hmne 8f Dav. 
S. F. vi. p. 45. Chelidon whiteleyi, Siviiih. P. Z. S. 1862, p. 320 ; id. Ibis, 
1874, pi. vii. fig. 2. Chelidon lagopoda, David et Oust. Ois. Chine, p. 130 ; 
Seebohm, Ibis, 1879, p. 17. 
Description. — Male and female, Forehead_, crown, nape, back, scapulars 
and lesser wing-coverts glossy steel-black ; rump and upper tail-coverts 
white, the shafts dark ; tail, wings and greater coverts brown ; lores, the 
feathers under the eye and above the ear-coverts dull black ; cheeks, lower 
ear-coverts and all the lower plumage pure white ; under wing-coverts and 
axillaries dark smoky brown. 
Length nearly 5 inches, tail 2*3, wing about 4*5 (the only two specimens 
I have been able to examine had the wings imperfect), bill from gape '45. 
The late Colonel Tickell states (/. c.) that C. urbica occurs at Moulmein 
in great numbers. When he made this statement it was not generally 
known that there was an allied species common in Eastern Asia. I think 
it very probable that this allied species, C. lagopoda, and not C. urbica, was 
the one which Colonel Tickell observed at Moulmein. The latter is more 
of a European bird, very rarely observed in India and very unlikely to be 
found in Burmah ; whereas C. lagopoda is a common Chinese bird and is 
consequently likely to visit Burmah. As one species of House-Martin 
certainly inhabits Burmah, according to Col. Tickell, I prefer to insert the 
Siberian bird in my work rather than the European one. 
C. urbica may be recognized by its upper tail-coverts, which are entirely 
