Example o/Archibuteo liemiptilopus, Blyth. 179 



The sex of this specimen has unfortunately not been re- 

 corded ; but the following are its principal measurements : — 

 wing from carpal joint 18"^! inches^ tail 10"8, culmeu without 

 the cere 1'05, tarsus 3'3, middle toe s. u. 1'5. 



In coloration and markings this example bears a singular 

 resemblance to some of tlie more rufous specimens of the 

 North- American Buteo calurus, Cassin, for which, but for its 

 plumed tarsi and somewhat longer wings, it might be readily 

 mistaken. 



The following is a description of the plumage of this speci- 

 men of Archibuteo hemiptilopus. The crown of the head and 

 the mantle are dark chocolate-colour, with some feathers on 

 the sides of the crown narrowly, and the feathers of the nape 

 and interscapular region broadly, edged with rich but not very 

 dark rufous ; the tertials are transversely barred with white 

 and dark brown, the latter spreading in some feathers over 

 the outer web to the exclusion of the white ; the secondaries 

 are chocolate-brown, but with the greater part of the exterior 

 portion of the inner web white, the entire feather being crossed 

 by transverse bars of dark brown ; but both the secondaries 

 and the darker tertials have slight whitish tips ; the primaries 

 are dark grey on the upper portion of the outer web, but 

 black towards the tip on both webs, the basal portion of the 

 inner web is white, and is separated by a smaller brown space 

 from the black tip ; the upper tail-coverts are transversely 

 barred with dark chocolate and rufous in alternate but some- 

 what irregular markings ; the central pair of rectrices have 

 the sides dark brownish grey, shading gradually into white 

 towards the centre of the feather, which has a white shaft, 

 the end of the feather being tinged with bright rufous for 

 about two inches from the tip upwards, and both webs being 

 crossed with eleven irregular transverse bars of dark greyish 

 brown; the lateral rectrices are similarly coloured and marked, 

 except that the inner webs are white, tinged with rufous 

 towards the tip, and there only, on that web, exhibiting the 

 transverse brown bars. 



The sides of the head are dark slaty brown, with slight 

 indistinct rufcsccnt shaft-marks ; the chin is white, inter- 



