THE ISLANDS OF THE BAY OF BENGAL. 243 



0"5. It seems needless to give any detailed description because 

 except in so far as the color of the upper surface is concerned, 

 and the comparatively huge bill, the bird differs in no particular 

 from the continental race, but this difference of bill is far 

 greater than the figures above given would perhaps lead one 

 to infer. 



This species was particularly common on Tillangchong, 

 fluttering about low bushes at the margin of the jungle, exactly 

 as the Indian race may constantly be seen doing. 



Davison remarks : — " I found this White-eyed Tit much more 

 common at the Nicobars than at the Andamans, but in neither 

 place is it what can be really called common. It probably breeds 

 at the Andamans, and certainly does at the Nicobars, for I saw in 

 February young birds that had only jnst left this nest. It fre- 

 quents chiefly the secondary jungle, coming also into gardens, 

 and occasionally is found hunting in small parties about the 

 tops of the higher forest trees.-" 



660.— Corvus Levaillantii, Lesson. (8.) 



The Bow-billed Corby of the Andamans has perhaps sex 

 for sex a larger bill than any continental race. At page 85 of 

 the ornithological portion of Lahore to Yarkand, I have fully 

 discussed the differences in size that exist in the various Indian 

 races of this species, and I need say little further in regard to 

 them. It should be noticed, however, that in this species the 

 bills of the males are very considerably larger than those of the 

 females, so that in comparing specimens from different loca- 

 lities it is necessary always to compare individuals of the same 

 sex. The smallest billed race of all is that from the Himalayas, 

 westwards of the Ganges ; the largest billed that I have yet met 

 with is the Andaman, and if fine specimens of each be placed 

 together, few ornithologists would hesitate to separate them; but 

 between the Andaman and Simla types every intermediate size 

 of bill is met with, and though the birds themselves, as well as 

 their bills are somewhat larger from the south, I think it per- 

 fectly impossible to separate any of these various races. 



The following are dimensions taken in the flesh of males and 

 females from the Andamans ; fine adults having been measured 

 in each case : — 



Males. — Length, 21*5; expanse, 38; wing, 13; tail, from 

 vent, 8-25 ; bill, at front, 2'63 ; weight, 1-25 lbs. 



Females. — Length, 20 ; expanse, 365 ; wing, 12"25 ; tail, 

 from vent, 8 ; bill, at front, 2'35 ; weight, 1 lb. 



