BIRDS OF TENASSERIM. 51 



103 quat— Collocalia spodiopygia, Peale. (28). Descr. 

 S. F., I., 296 ; II., 160. 



Mergui ; Pakchan ; Bankasoon. 



Extremely common throughout the year in the southern por- 

 tions of Tenasserim, and breeds largely in the islands of the 

 Mergui Archipelago from Tavoy Island southwards. 



The following are dimensions, &c, recorded in the flesh : — 



Males. — Length, 47 to 4'9; expanse, 1082 to 11*5 ; tail from 

 vent, 2 to 2-15; wing, 4-62 to 5*0; tarsus, 035 j bill from 

 gape, 0*5 to 0*55 ; weight, 0*4 to 0*5 oz. 



Female. — Length, 4-65 to 4-85; expanse, 10-82 to 11-65; 

 tail from vent, 1*9 to 2-12 ; wing, 4-62 to 4-85 ; bill from gape, 

 0-5 to - 55 ; weight, 0"5 oz. 



Legs and feet purplish brown ; bill black ; irides very dark 

 brown. 



104.— Dendrochelidon coronata, Tick (2). 



(TonglioO) Karennee at 1,700 feet, Rams.) Pine forests, Salween ; Ngabeemah. 



Kare in Tenasserim and only found in the northern and 

 central portions. 



[I never met with this species further south than Ngabeemah 

 on the Attaran. — W. D.] 



104 bis.— Dendrochelidon comata. Tern, (2). 



Ckoungthanoung; Pakchan ; Bankasoon; MalewooD, 



Confined to the extreme south of the province but rather 

 common there. 



[I first met with this lovely little Tree Swift at the Choun^- 

 thanoung tin mines, some 90 miles south of Mergui, where 

 there were several seated on the dead trees about the mines 

 occasionally swooping down and hawking over the water col- 

 lected in the abandoned pits. Further south it occurred more 

 numerously, and in February I found it comparatively com- 

 mon on the higher portion of the Pakchan, seated singly, or 

 in pairs, on the bamboos overhanging the stream. This and 

 the next species I found frequented by preference Tounyahs 

 or clearings, where there were numbers of dead trees standing 

 about, where they could perch and get a good view all round. 

 Sometimes 1 have seen both species flying about over the top 

 of heavy forest ; as a rule they avoid settling on leafy trees. 

 They are not at all shy birds. — W. D.] 



The following are dimensions, &c, of this species re- 

 corded in the flesh : — 



Males.— Length, 6-12 to6'5 ; expanse, 12-25 to 12*9 ; tail, 2-8 

 to 3-3 ; wing, 4-83 to 5-12 ; tarsus, 0*2 to 0'3 : bill from o- a pe 

 0-62 to 0-7 ; weight, 0-5 to 0'65 oz. 



