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surface is black, with the quills of the wings brown and 
barred with blackish-brown, and the tail brown, barred 
with four or five blackish-brown bands. The sides of the 
cheeks, of the neck, and of the breast, are reddish brown, 
the first with a black cross band. The throat, breast, 
and belly white, the last closely banded with black, 
continued down the feathers of the legs. In the young 
birds, the tints are browner, and the white under surface 
is less barred, the centre of the body being only marked 
with spots of black. The head also is white. 
The next species, the black-breasted crowned eagle 
fS, tyrannus), though very closely like the foregoing in 
its immature stages, is distinguished by its prevailing black 
colour above and below, though indications of white spots 
or even bars may occur here and there on the 
under surface. In the young birds, the black is much less 
pronounced, the head, throat, and fore breast being white, 
with black lines or blotches on the latter ; while the 
hinder parts are black with white blotches which run into 
bars on the flanks and legs. This species is not included 
in Salvin'S revised list of the birds of British Guiana. 
The remaining buzzards include some of the com- 
monest hawks in the colony ; and along the lower tidal 
parts of the creeks and rivers, they are the birds most 
frequently seen, either perching on the trees — on the 
highest branches or the lowest stumps — along the 
sides, or flying overhead, or seeking food walking with 
slow gait on the mud-flats. They include the well- 
known "grey hawks," "red hawks," " brown hawks" 
and f ' black hawks" — nearly all being denoted by the 
term " chicken-hawk" as well. 
k_ The commonest of these is the " grey chicken-hawk" 
