THE BIRDS OF NORTH CACHAR. 363 



upper Dape are always vinous, and the breast is never tinged with 



lilac as it is in that bird. In fact it was this lilac tinge being so 



strongly developed which first drew my attention to the bird above 



mentioned, as on first getting it I thought it was only C. insignis. 



Sub-family Treroninm. 



(417) Treron nepalensis. — The Thick-billed Green Pigeon. 



Hume, No. 111. ' 



The commonest green pigeon in these hills, and almost equally 

 plentiful in the plains. 



Breeds everywhere in suitable places, generally placing its nest in 

 a bamboo clump situated in mixed bamboo and tree forest. 



Fifty eggs average 1'10"X'82", but they grade from 1*02'' in length 

 to 1'38" and from '78" in breadth to I'OO'''. The majority, however, 

 lie between 1'07" and I'lS" in length, -80" and '84" in breadth. They 

 breed principally in April, very few in March, and equally few as late 

 as June. ^ 



(418) Crocopus phcenicopterus. — The Bengal Green Pigeon. 



Hume^ No. 772. 



I have not met with this species, but there is a specimen in the 

 British Museum from Cachar. 



(419) Crocopus viridifeons. — The Yellow-fronted Green Pigeon. 



Hume, No. 773 Us. 

 This is the rarest of the North Cachar green pigeons, and is only, 

 as far as I know, to be found in one or two localities, of which the 

 Mahar valley is the one in which it is most often co be met with, and 

 where a few pairs of birds breed every season. 



(420) OsMOTEEEON BisiNCTA. — The Oiange-bieasted Green Pigeon. 



Hume, No, 774:. 



Spread all over North Cachar and extending well into the plains, 

 it is not, however, anywhere very numerous. 



The young male has the orange of the breast well developed by the 

 end of the first year, but the other colours of the breast are not, judging 

 from those young I have seen, shewn until the bird is well advanced 

 into the second year. The nest of this species seems to be about the 

 most primitive of all pigeons' nests. I have seen some which it 



