246 A LIST OF THE BIRDS OF PEGU, 
438.—Larus ichthyaetus, Pall. (979.) 
During the cold weather considerable numbers of this large 
Gull may be seen in the Sittang river, near Kayasoo, and occa- 
sionally on the Canal. They are mostly young birds. One young 
bird measured :—Length, 25:7; expanse, 62; tail, 6:6; wing, 
18°6 ; tarsus, 2°85; bill from forehead, 2°2; middle toe and 
claw, 2°6. 
The iris was dark brown ; the edges of the eyelids black ; gape 
and basal half of the margins of the bill pale yellow ; remainder 
of the bill very dark brown; inside of the mouth pale salmon 
colour; legs, feet, and webs pale purpurescent brown; claws 
black. 
This young bird agrees exactly in colour and dimensions 
with a bird shot in the Akyab harbour. It is also undoubtedly 
of the same species as four adult birds, two in full summer 
plumage, shot at Bhamo. In these adult birds the colouration 
of the bill, so peculiar, clearly shews them to be ichthyaétus. 
As Mr. Hume has already pointed out, the full grown bird has 
the tail pure white, and not with a black bar across. This bar 
seems peculiar to the young birds only. 
439.—Larus brunneicephalus, Jerd. (980.) 
Very common in all tidal waters. I do not remember to 
have ever seen it far from salt water. 
440.—Sterna caspia, Pail. (982.) 
Uncommon. I shot two in the Sittang river during a gale 
of wind and rain, and have never met with it again. 
441.—Sterna anglica, Mont. (983.) 
Doctor Armstrong procured this species at Elephant Point.* 
442.—Hydrochelidon hybrida, Pall. (984.) 
Abundant in all the rivers and creeks of Lower Pegu in the 
cold weather. 
443.—Hydrochelidon leucoptera, Mes. § Schl. 
(984 dis.) 
A large series of these birds have been kindly identified for 
me by Mr. Howard Saunders. It is as common as the pre- 
ceding, and found in the same localities. 
444.—-Sterna seena, Sykes. (985.) 
Very abundant over the whole province. f 
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* And I have received it from the Bassein estuary.—Ep., 8, F, 
t Add 985 bis.—Sterna dougalli, Mont. 
Several specimens from the Bassein estuary.—ED., §. F. 
