THE BIRDS OF BANGKOK 87 
Iris, brown. Bill, dark brown above, dusky yellcw below. 
Mouth, yellow. Legs, dusky flesh-colour to greenish yellow. 
Habits, etc. This bird is only found here in the ccld weather, 
and is fairly common in our gardens during that period. My speci- 
mens were obtained from November to April. It flits and hops about 
bushes and low trees, searching for small insects, and has a sharp little 
note of chik, repeated at intervals. 
Distribution. There appears to be no previous record of the 
occurrence of this bird in Siam. 
18 (417). Phylloscopus superciliosus. The Crowned 
Wallow- Warbler. 
Description. Length, about 101 mm. (4in.). Upper plumage, 
olive-green, darker on the crown; a distinct greenish yellow super- 
cillum from the forehead to the nape; two pale yellow bars on the 
wings, most of the quills of which have narrow whitish tips. Lower 
plumage, whitish to yellowish white. 
The crown has an irregular and indistinct longitudinal streak of 
greenish grey (which, however, is not always visible), from which 
the bird derives its English name. 
Iris, brown. Bill, brown above, yellowish white below. Mouth, 
yellow. Legs, brownish flesh-colour. 
Habits, ete. This small bird is a cold weather visitor, from 
October to about January, and is fairly common in our gardens during 
those months. It appears to frequent trees more than bushes, and 
is always on the move, hunting for its small insect prey, which it 
occasionally takes on the wing by a sudden dart of a few inches from 
its perch. It continually jerks its wings, while flitting about the 
‘branches, and has a pretty little note of tweet, tweet, repeated several 
times. 
Distribution. Also recorded from Trang (Robinson and Kloss), 
and Eastern and Northern Siam ( Gyldenstolpe ). 
19 (420). Acanthopneuste borealis. The Arctic 
Wellow- Warbler. 
Description. Length, 122 mm. (4.8 in.). Upper p'umage, 
dark olive-green, lighter on the rump; a well-defined yellowish white 
supercilium reaching from the forehead to the nape; two yellowish 
