RANGOON DISTRICT OF TITE IRRAWADDY DELTA. 301 
mangrove. The following are the dimensions recorded in the 
flesh of a male bird shot in Deserter’s Creek :— 
Length, 19; expanse, 46-5; tail from vent, 6-8 ; wing, 13°9 ; 
tarsus, 2°95; bill from gape, 1:95. 
The irides were light yellow, cere, dark slate color; bill, 
dusky ; legs and feet, ‘dusky yellowish brown. 
[This species is not included by Dr. Jerdon, and has not yet 
been described in ‘‘ Stray FraTHErs.”’ 
The dimensions are very variable, but I cannot yet satisfy 
myself that there is any constant difference in the dimensions 
of the sexes, though I have twelve specimens before me 
from Johore, Malacca, Pak-Chan, Tenasserim, Amherst, and 
Rangoon. 
Taking the two sexes together, the dimensions recorded in 
the flesh vary as follows :-— 
Length, 17°75 to 19°25; expanse, 46 to 48; tail from vent, 
6:25 to 7; wing, 13°25 to 14 (a very young bird has the 
wing 12°75); tarsus, 2°6 to 2°95; bill from gape, 1°65 to 2; 
weight, 1°75 to 2°25 tbs. 
In the adult the colors appear to be as given above by Dr. 
Armstrong. In the young birds the legs and feet appear to 
be a pale dirty green, or dirty greenish white. The bill and 
cere, dark plumbeous horny ; the gape and the tip of the lower 
mandible, whitish; in one young bird, however, the bill was 
plumbeous blue, yellowish horny at tip, and the cere, green- 
ish blue. At all ages the irides appear to be yellow. 
The feathering of the tarsi varies a great deal in different 
individuals. This may possibly be partly due to age, but I 
have not been able to satisfy myself of this fact. In one 
specimen the whole tarsus and tibio-tarsal articulation, except 
just in front, are quite bare; in another a very narrow tongue 
of feathers runs down the front of the tarsus for about three 
quarters of an inch; in another again, no portion of the tibia 
even at the back is bare, the whole of the front and sides of 
the tarsus is feathered at the joint, and from this a broad 
triangular patch of feathering runs downward for fully an 
inch from the joint, terminating, of course, in a point on the 
front of the tarsus. 
The whole lower surface in the adult is a uniform clear buff, 
the chin only and a large patch at the base of the throat, 
white; all the feathers “with narrow linear blackish brows 
shaft-stripes, always broadest on the breast, and the thigu 
coverts unstreaked. The breadth of the streaking on the 
lower surface varies very greatly in different specimens. In 
the very young birds the broadest streak barely exceeds 0°15; in 
some birds, ap sparently of intermediate age, some of the stripes 
