AQUILA CORONATA. 



bars, which diminish in width towards the margins of the feathers ; outer vanes 

 transversely banded, blackish brown and deep hoary grey. Tail blackish 

 brown, tipped with white, the last half variegated with three broad, deep, 

 hoary grey bands. The upper mandible and the lower, except at its base, 

 liver-brown, clouded with reddish brown, the base of the lower mandible dingy 

 yellow. Eyes and toes yellow ; claws a dark horn colour. Most of the 

 feathers of this bird have a faint silky gloss. 



Specimens are frequently obtained in which the under parts are more or 

 less tinged with pale hyacinth-red, and blotched Avith brown ; such appear- 

 ances are only to be regarded as indications of immaturity. 



Form. — Figure moderately robust ; feathers of occiput considerably elon- 

 gated, and forming a distinct crest. Bill strongly curved towards the point, 

 and the fesloon on the cutting edge of upper mandible slightly developed. 

 Wings short, somewhat rounded, and, when folded, reach about two inches 

 beyond the base of the tail ; the fifth and sixth quill feathers equal and longest ; 

 the fourth and seventh equal and a little shorter ; the third rather longer, 

 and the second rather shorter than the eighth ; the first nearly five inches 

 shorter than the two longest. Legs powerful and feathered to the toes. The 

 toes superiorly with a few transverse plates behind base of claws, elsewhere 

 coated m ith small subcircular scales ; claws long, powerful, much curved and 

 flat beneath. 



DIMENSIONS. 



Inches. Lines. 



Length from the point of the bill to 



the tip of the tail 84 G 



of the bill froiii the anole of the 



mouth 2 4-| 



of the wings when folded 10 



ofthetail 14 



Lengih of the tarsus 



of the outer toe 



of the middle toe 

 of the inner toe . . . 

 of the hinder toe . . 

 of the hinder claw 



(Yomig Female. Plate XLI.) 

 Colour. — The top of the head, the chin, the throat, and the feathers of 

 the crest umber-brown, the tips of the latter cream yellow; the sides of the 

 head and the upper and lateral parts of the neck dull yellowish brown ; the 

 interscapulars, back, rump, upper tail coverts, shoulders, lesser wing 

 coverts, primary and secondary wing coverts and scapulars, rich blackish 

 brown, with a strong resplendent gloss in certain lights. The secondary 

 wing coverts and the upper tail coverts partially barred with dusky white, 

 and the latter also narrowly tipped with the same colour. Breast blackish 

 brown, all the feathers towards the bases cream-yellow with a reddish tint; 

 belly, flanks, vent, and under tail coverts, blackish brown, variegated with bars 



