BIRDS OF TENASSERIM. 483 



so that the birds clearly do not all assume the breeding- plum- 

 age quite at the same time. Perhaps the males in non-breeding 

 plumage without the crest may be young birds, and the crest in 

 the non-breeding plumage may be the normal plumage of the 

 adult males. 



931.— Butorides javanica, Horsf. (21). 



(Tonghoo, Earns.) Youngzaleen Creek; Salween E. ; Wimpong ; Pabyouk • 

 Amherst ; Tavoy ; Choungthanoung ; Bankasoon. 



Extremely common in every stream throughout the province. 



932. — Ardetta flavicollis, Lath. (6). 



(Tonghoo, Earns.) Attaran E ; Amherst ; Bankasoon. 



Very rare ; only observed in the southern half of the pro- 

 vince, and the tracts west of the Sittang. 



[This species frequents shady streams during the day, comino- 

 out into the open marshes at dusk. It is rare and shy. I have 

 only seen it at Amherst and Bankasoon, but Captain Bingham 

 obtained it on the Attaran. — W. D.] 



The following are dimensions, &c, of three males and a 

 female recorded in the flesh :— 



Males —Length, 230, 24'5 ; expanse, 30-0, 31*2 ; tail from 

 vent, 2-5, 2-9 j wing, 8-12, 8-5; tarsus, 25, 2*75; bill from 

 gape, 4-0, 4-25 ; weight, 8*0, 9*0 ozs. 



Female. — Length, 24*75 ; expanse, 30'0 ; tail from vent, 2*75 • 

 wing, 8-25 ; tarsus, 275 ; bill from gape, 4 # 25 ; weight 8 ozs. 



In the male the basal two-thirds of the lower mandible and 

 edges of the upper mandible, along commissure, and a patch in 

 front of the eyes, light sienna brown ; rest of bill almost black • 

 legs and feet blackish blue grey ; claws black. In the female 

 the lower mandible and edges of upper mandible, along com- 

 missure, and space in front of the eye pale horny ; rest of bill 

 very dark horny brown; legs and feet brown, tinged red at 

 back of tarsi : in one male and one female the irides were 

 crimson, another male had them pale brown. 



933. — Ardetta cinnamomea, Gm. (10). 



(Tonghoo, Earns.) Amherst ; Om-a-gwen ; Tavoy ; Laynah ; Bankasoon. 



Only observed in the southern half of the province, where 

 common, but obtained by Ramsay in the tracts west of the 

 Sittang. 



[This species frequents thick grass and reeds and brushwood 

 growing on the banks of streams, keeping very quiet during the 

 day, but coming out to feed along the banks in the morning 



