(1169) Motacilla alba baicalensis.
Swinhoe's White Wagtail.
Motacilla baicalensis Swinhoe, P. Z. S., 1871, p. 363 (? Eastern Asia).
Vernacular names. Dhobini (Hind.).
Description. Similar to the Masked Wagtail but adult birds in full Summer plumage always retain the white chin and have the crown white as far back as the back of the eye or further; the outermost tail-feather is pure white in a few specimens.
Colours of soft parts as in M. a. personata.
Measurements. Wing 90 to 97 mm.; tail 91 to 95 mm.; tarsus-23 to 24 mm.; culmen 12 to 13 mm.
Distribution. Breeding in East Siberia, from Lake Baikal to E. Manchuria; Wintering in South China to Yunnan and the Shan States. A typical specimen was also procured in Tibet at Khamba-jong by Walton and I have a record of a specimen obtained at Asalu, N. Cachar, in 1899.
Nidification. Nests and eggs taken by Smirnoff during May and June in Eastern Siberia and Manchuria are just like those of the European Wagtail. The eggs measure about 21.2 x 15.3 mm.
Habits. Those of the species.