128 LIST OF DIURNAL BIRDS OF PREY. 



coloration, especially as the younger bird has not been 

 described, except in Count Salvadori^s article above referred 

 to. Commencing with the latter, the crown of the head is 

 dark rufous, with somewhat paler edges to the feathers, which 

 have also white bases, partially apparent ; on the centre of 

 the vertex some slate- col oui'ed feathers of the next plumage 

 have appeared, which are a little darker than the correspond- 

 ing feathers in the adult male ; the feathers above and below 

 the eye and upon the cheeks are yellowish white, with minute 

 blackish-brown centres ; the nuchal collar is black, but with 

 partially apparent white bases to the feathers ; on the sides 

 of the neck the feathers are dark brown, with conspicuous 

 yellowish-white edges ; the interscapular feathers are yel- 

 lowish white, but each feather bears a dark brown shaft-mark 

 and cross bar and a broad rufous-brown tip ; the remainder 

 of the mantle is rich rufous, with concealed yellowish- white 

 bases to the feathers of the wing-coverts (as also to the quill- 

 feathers of the wings), but this rufous colour is tinged with 

 blackish on and adjoining the shafts of the feathers, the 

 inner webs of which, except on the least wing-coverts, are of 

 a pale rufous, save at the tips, and are transversely barred 

 with blackish brown ; the tail is rufous, cross-barred with 

 brown, indistinctly on the central pair of rectrices, but very 

 distinctly on the inner webs of the others, six bars being 

 perceptible on the central and eight on the external rectrices ; 

 the entire underparts are yellowish white, sparsely varied 

 with longitudinal and partially sagittate brown markings, 

 except on the under wing-coverts, which are immaculate. 



In the accompanying adult specimen the entire upper 

 surface is slaty grey, but this is paler on the head, nape, and 

 cheeks than it is elsewhere ; the tail is a uniform slaty grey, 

 with the exception of slight traces of cross bars on the inner 

 webs of some of the lateral rectrices; on the under surface 

 the tail is brownish grey, but all the other underparts are 

 \inous, that hue being palest on the throat, and disposed in 

 bars of two shades, a paler and a darker alternately, on the 

 wing-linings, axillaries, and crissum, also, indistinctly, on the 

 abdomen and thighs. 



