GREY-FRONTED GREEN PIGEON 39 
wherever found, it is resident, merely moving higher up the hills 
in the hot weather and rains, JBourdillion says that it ascends as 
high as 3,000 ft. in Travancore, but Davison, possibly referring 
to other months, says that it does not ascend the hills at all. 
Though common enough in some parts of its distribution, the Grey- 
fronted Green Pigeon seems nowhere to be found in as vast numbers 
as is the Ashy-headed Green Pigeon. It collects also in rather smaller 
flocks, generally of half a dozen or so, and there appear to be no 
record of flocks much over twenty. Mr. F. W. Bourdillion says that 
it “ may be found in great numbers in the neighbourhood of the hill- 
men’s clearings, but in February and March they ascend the hills 
to over 2,000 ft. Their note is a low chuckling whistle.” 
This description of their call would, however, apply only to some 
of their notes, as other writers describe their whistle as a most beautiful 
and melodious sound, apparently much like that made by the other 
birds of this genus. 
