8G JOURNAL, NATURAL HIST. SOCIETY OF SIAM. Vol 1. 



Iri^, light yellowisli brown. Bill, brown above, flesh-colouivd 

 below. Legs, pinkish flesh. In the breeding season the mouth is 

 black. 



Hahits, etc. Tliis small bird is common in the fii-lds round 

 Bangkok, especially those which are fallow. It is fond of soaring- 

 in the air, with rather a jerk}'' flight, caused by the momentary closing 

 of its wings after every few beats, and, while so doing, it utters at 

 regular intervals its sharp little staccato note of chi-chi. It dives to 

 the sfround from a height, with a sudden and almost vertical 

 swoop. 



iJidrihntioii. I have been unable to trace any previous record 

 of the occurrence of this bird in Siam. 



-flG (393). Arundiaax aedon. The Thick-Mlled 



Warhler, 



Description. Length, about 197 ram. (7.75 in.). Upper plum- 

 age, fulvous olive-brown, brightest on the rump; lores, whitish. Chin 

 and throat, bufiish white ; remai)ider of lower plumage, yellowish 

 brown, paler on the centi-e of the abdomen. 



Iris, brown. Bill, dark brown above, flesh-colour below. 

 Mouth, salmon-colour. Legs, plumbeous. 



As already mentioned, this bird is very similar in appearance 

 to Acrocepkalus orientalh, from which, however, it is readily distin- 

 guished by its com])aratively long first primary, vide Plate, 

 page 83. 



Kahits, etc. This is a (;old weather visitor, though apparent! v 

 not very common. I liave obtained it from October to April. 



Didrihntimi.. (lyldenstolpe also records this bird ( under the 

 name of Lusciniola aedon) from Y)Qn Chai, in Northern 8iam. where 

 he obtained a single specimen. 



417 (41(1). Phylloscopus fuscatus. The Dushj Willow- 



W'arhler. 



Description . Length, 133 mm. ( 5,25 in. ). Upper plumage. 

 earthy brown, with a yellowish tinge on the rump ; a distinct whitish 

 supercilium from the forehead to the nape. Lower plumage, yellowish 

 brown, whiter on the chin, throat and centre of abdomen. 



