536 
Mr. G. L. Bates on the 
adults in the plumage of the throat and chest, and in the 
colour of the bill. The bill is black or red mixed with black, 
while in the adult it is entirely red; the black throat-plumage 
is mixed with a yellowish-brown colour like that of the belly, 
and there is a tinge of the same colour on the white chest. 
It was a mistake when I spoke of the “ yellow iris ” of 
birds of this species. The conspicuous yellow colour is not 
tint of the iris, but of the ball of the eye, outside the iris ; 
the latter is dark brown. 
A small flock of these birds was observed day after day 
near my camp at Assobam. They were always seen near 
the same place moving from tree to tree in a sluggish way, 
one at a time, and then sitting for a long time motionless. 
One of the sounds made by them resembled the Ci swishing ” 
of a switch; this was made with the mouth while the birds 
were sitting still. They also make a snapping noise with the 
bill. A specimen that was brought to me alive, having been 
merely knocked down by the little arrow, made this loud 
snapping noise. 
PoMATORH YNCHUS FRATER. 
Sharpe, Ibis, 1908, p. 335 ; Bates, Ibis, 1909, p. 33. 
Two young birds, one half-fledged and still in the nest, 
and one which had just left the nest, had the plumage much 
like that of the adult. In each the tongue and the inside of 
the mouth were bright orange, while the swollen margin of 
the gape was white. 
The majority of the nests with eggs have been found in 
the month of August, but nests with eggs or nestlings have 
also been obtained in September and October, as well as 
in March. The principal rainy season begins at the end 
of August, and it is probable that insects are most abundant 
at that season. 
The number of eggs in a nest was always two. Seven eggs 
not included in the former description vary in length from 
25*5 to 22 mm , and in width from 18 to 16 # 5 mm. 
[These eggs much resemble those already described, and 
are quite of the same type as those figured in the f Catalogue 
