28 MR. W. J. F. WILLIAMSON ON 
about 25 miles south-east of Bangkok, a few feet above sea-level, cover- 
ed with coarse grass, and intersected with canals which finally drain 
into the head of the Gulf of Siam. There are a few trees at intervals 
along the canal banks, and round the villages which occur here and 
there. Until last year I had never observed the bird in the actual 
vicinity of Bangkok, and it may have been attracted by the flooded 
condition of the country round the city, to which reference has already 
been made, vide pp. 21 and 22. When in the air, it is noticeable as a 
dark, heavily-built bird, with a large head and rather short neck. 
37. Butastur indicus (Gmel.). The Grey-faced Buz- 
zard-Kagle. 
12 imm. Rayong, South-eastern Siam, November 1915. W. 
320 mm. 
1d ad., 12 ad. Bangkok, Central Siam, February and March 
1918. 
Male. T.L. 419 mm. W. 317. Female. T.L. 482 mm. W. 330, 
Iris yellow. Upper mandible and terminal half of lower 
black. Base of lower mandible orange-yellow (male), grey ( female ). 
Gape and cere orange-yellow. Legs and feet yellow. Claws black. 
There appears to be no previous record of the occurrence of this 
bird in what is now Siamese territory, though Robinson and Kloss 
procured a couple of specimens in 1907 and the early part of 1909 
(Ibis, 1911, p. 23), from the Langkawi Islands (on the west coast of 
the Malay Peninsula), which were then under the suzerainty of Siam. 
These islands were ceded to Great Britain in the latter of the two years 
mentioned, together with the State of Kedah, on the adjacent mainland. 
38. Butastur liventer (Temm.). Zhe Lufous-winged 
Buzzard-Hagle. 
1d imm. Koh Yai ( Samkok), Central Siam, July 1917. 
T.L. 370 mm. W. 268. 
Iris brown. Terminal two-thirds of upper mandible and tip of 
lower, dark brown ; remainder of bill and cere deep yellow. Legs yellow. 
Claws black. 
Blanford (Faun. Brit. India, Birds, iii (1895), p. 365) says this 
species is “ found also in Siam "the other countries mentioned be- 
ing Burma, Borneo, Java and the Celebes. It does not appear to have 
JOURN. NAT, HIST. SOC. SIAM. 
