Mr. R. B. Sharpe’s Catalogue of Accipitres. 73 
abdomen, and a paler brownish barring on the thighs; but 
both these parts are ultimately of a pure white. 
The collection of Messrs. Salvin and Godman and that of 
the Norwich Museum both comprise specimens of a Buzzard 
from tropical South America nearly related to B. albicau- 
datus, but principally differing from that species by a pecu¬ 
liarity somewhat resembling that Avhich distinguishes B. po- 
liosomus from B. erythronotus, viz. the slaty colouring of the 
underparts in the adult plumage. This Buzzard is not men¬ 
tioned in Mr. Sharpe's work; but Mr. Salvin agrees with me 
in considering it to be a distinct species, and has suggested 
for it the specific name of “ B. hypospodius which I propose 
to adopt as appropriately characteristic of the peculiar colo¬ 
ration of its under surface. 
I subjoin a description of the examples of Buteo hypospo¬ 
dius which have come under my notice, premising that in 
this species the characters of the legs, feet, and wings resem¬ 
ble those of B. albicaudatus : the upper part of the tarsus is 
feathered in front for about an inch; the wings have the three 
first primaries only emarginated; the third primary is the 
longest; but the fourth nearly equals it, and in some speci¬ 
mens is not perceptibly shorter. 
The first three specimens to which I shall allude are in the 
collection of Messrs. Salvin and Godman; the remaining three 
are preserved in the Norwich Museum. 
No. 1, from Medellin, in New Granada, has the entire 
head, neck, and throat of a dark slate-colour, the scapulars 
and interscapulars a little paler, the former with broad brown¬ 
ish grey tips to most of the feathers, the latter with similarly 
coloured tips, but narrower, and with concealed white bases to 
the feathers; the lower back and rump are of a similar slate- 
colour, which becomes paler as it approaches the tail-coverts, 
and is crossed with alternate but irregular transverse bars of 
grey and white on the basal portions of the feathers; the upper 
tail-coverts are white, with dark shaft-marks and dark grey 
transverse bars, the latter narrowest on the feathers nearest the 
tail; the general colour of the upper surface of the wings is 
slaty, darkest on the lesser and middle wing-coverts, where 
