821. Hirundo daurica.
The Daurian Striated Swallow.
Hirundo daurica, Linn. Mantissa Plant, p. 528 (1771); Sharpe, Cat. B. M. S., p. 159. Hirundo alpestris, Pall. Pels. Muss. Reichs, ii, p. 709 (1773). Lillia intermedia, Hume, S. F. v, p. 263 (1877). Hirundo intermedia (Hume), Hume, Cat. no. 85 ter.
Coloration. Resembles H. striolata closely, but has the lower plumage distinctly rufous, and the striations less coarse ; the shafts of the feathers of the rump are with few exceptions rufous, a very few only being very finely black.
The dimensions are much the same as those of H. striolata.
This species, when compared with the last, appears very distinct, and it has a very different geographical distribution.
Distribution. The only two specimens of this species killed within Indian limits that I have seen, are two in the Hume Collection from Sadiya in Assam, obtained in June. These are the types of Lillia intermedia (Hume). This species is found over a large portion of Northern and Central Asia, but does not extend to Japan or China. I have seen specimens from the Irtisch river, Dauria, and Mongolia, all killed in the height of summer. It is probably a resident species except in the more northern part of its range.