(1154) Hirundo rustica tytleri.
Hirundo tytleri Jerdon, B. of I, iii, p. 870 (1864) (India) (Dacca, Bengal, Oberholser); Blanf. & Oates, ii, p. 278.
Vernacular names. None recorded.
Description. Differs from the two previous races in having the whole breast, flanks, abdomen and under tail-coverts almost as dark a colour as the chestnut throat; the black pectoral collar is confined to the sides of the upper breast, occasionally showing to a very slight degree only in the centre.
Colours of soft parts as in the other races.
Measurements. Wing 103 to 123 mm.; tail 74 to 79 mm.; tarsus 10 to 11 mm.; culmen about 8 to 9 mm.
Distribution. Breeding in Kamschatka and extreme North-East Siberia; in Winter to Eastern Bengal, Assam and Burma.
Nidification. As far as is known similar in every respect to the other races of H. rustica. Supposed eggs of this subspecies from Eastern Manchuria sent me by Smirnoff are indistinguishable from those of the Eastern Swallow.
Habits. As in the other races. This Swallow visits Assam, extreme Eastern Bengal, Manipur and Burma in some numbers during Winter, arriving in August to October and leaving February to early April. Young birds, as usual, come first and leave last.