Mr. R. B. Sharpens 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 which distinguishes B. po- 

 liosomus from B. erytlironotus , viz. the slaty colouring of the 

 underparts in the adult plumage. This Buzzard is not men- 

 tioned in Mr. Sharpens 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- 

 dins 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 IVIessrs. 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 j 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 wjng-coverts, where 



