(1253) Zosterops siamensis.
The Siamese White-Eye.
Zosterops siamensis Blyth, Ibis, 1867, p. 34 (Siam); Blanf. & Oates. i, p. 216.
Vernacular names. None recorded.
Description. Differs from all other species of Indian Zosterops in having the whole lower plumage bright yellow ; the axillaries and under wing-coverts are yellowish-white; there is the usual white eye-ring and black loral patch and the upper plumage is bright olive-yellow.
Colours of soft parts. Iris pale yellowish-brown ; bill black, the base of the lower mandible bluish-slaty; legs and feet bluish-plumbeous.
Measurements. Wing 50 to 53 mm.; tail 36 to 37 mm.; tarsus 15 to 16 mm. ; culmen 10 to 11 mm.
Distribution. The whole of Burma from Mt. Victoria in the Chin Hills to Southern Tenasserim, Siam and Cochin China.
Nidification. Two nests taken by my collector in Tenasserim were built on high trees in comparatively open grass-country. The nests were the usual neat little cups made of grass, moss and roots, mixed with a curious fibrous material which looks like shreds of the inner bark of some tree. The whole of these materials are matted with spiders' webs. The two nests were taken on the 24th and 27th March and contained, respectively, three and four eggs which are of the usual colour and description, measuring about 14.9 x 11.5 mm.
Habits. Davison found these birds both in the Mangrove-swamps about Thaton and again at the top of Muleyit Mountain. Like the Indian White-Eyes it was associating in flocks and hunting the higher branches of the trees for food. It apparently avoids the interior of the forests, keeping either to the outskirts or to clumps of trees on the grass-lands. Its constant little twitter is said to be just like that of Z. p. palpebrosa.