34 AQUILINE. 



stripe ; on the abdomen many of the feathers get a fawn-colored 

 spot towards their tip, and a tint of the same color pervades 

 portions of the vent-feathers and lower tail-coverts. 



" Later, again, the whole head, nape, and sides of neck become 

 a warm fawn brown, all the feathers now showing narrow, 

 blackish shaft stripes. The lower parts are still chiefly white, 

 but almost all the feathers of the breast and abdomen have a 

 more or less triangular brownish, fawn-colored spot at the tip, 

 and show a tendency to a dark shaft stripe ; and in some birds 

 at this time several of the feathers of the lower throat have 

 conspicuous narrow black shaft-stripes. 



" The sides become fawn-brown, though the feathers still are 

 mottled white at the bases and the shafts are darker ; the thighs, 

 vent-feathers, and lower tail-coverts are now a warm, but brown- 

 ish fawn color, somewhat irregularly barred with white ; the 

 tail has now only four bands besides the subterminal one, which 

 has become conspicuously broader. (Sometimes the young bird, 

 before exhibiting any black streaks on the side of the neck or on 

 the throat, become nearly uniform warm fawn color on the entire 

 lower surface, and even retains this plumage until it has acquired 

 the adult tail.) 



" Then (to return to the normal stage of progression) the 

 black striping of the head, back, and sides of the neck, becomes 

 more conspicuous ; a black central throat stripe begins to be 

 indicated, the warm fawny tint of thighs and vent becomes re- 

 placed by a wood- brown, the black shaft stripes of the breast 

 become more oval, and the tail begins to approach the normal 

 type with only three transverse bars besides the subterminal 

 one. 



" Gradually the brown of the vent and flanks creeps up to the 

 lower breast ; the breast spots grow larger and larger, and ulti- 

 mately the white margins of the feathers almost wholly assume 

 the brown tint of the abdomen. The entire white chin and 

 throat have the feathers so broadly striped, centrally, with black, 

 that only just enough white peeps through to give indications of 

 separation between a black throat stripe, and two broad black 

 moustachial stripes. 



" The brown of the head and sides of the neck, though still 

 warm, has lost the fawny tinge of the younger stages, and the 

 black centres of the feathers have greatly increased in size. 



" The tail has a very broad terminal band, of say T8 and inter 

 space of 2, and three other bands each about an inch broad. 

 The crest, quite black and untipped, grows to a great length. 

 While these changes have been going on the whole upper 

 plumage has been growing darker. 



" As to the white tipping to the crest this is very irregular, the 

 youngest birds and the oldest generally want it ; birds of inter- 

 mediate stages generally have it." 



The Crested Hawk Eagle is confined to the hilly tracts of the 



