39. AQUILA. 241 



Aqiiila bifasciata, J. E. Gray, in Gray ^- Ilardiv. HI. Ind. Zool. i. pi. 1 7 



(1832) ; G. i?. Grai/, Gen. B. iii. App. p. 1 (1849) ; Bp. Consp. i. 



p. 14 (1850) ; Strickl. Orn. Syn. p. 58 (1855); Anders. P. Z. S. 



1871, p. 621; Brooks, J. A. S. B. 1873, p. 145. 

 Aquila mpalensis, Hodgs. Asiat. Res. xviii. pt. 2, p. 13, pi. 1 (1833). 

 Aquila orientalis, Cab. J. f. O. 1854, p. 369. 



Aquila mog-iluik bifasciata, Schl. Mtts. P.-B. Aquilse, p. 3 (1862). 

 Aquila clanga, Pe/z. Verh. z.-h. Wien, 1862, p. 156; Nevt. Goth. 



Wolky. p. 43 (1864). 

 Aquila imperialis, Radde, JReis. Sibir. p. 81 (1863). 

 Aquila amurensis, Swinh. P. Z. S. 1871, p. 338. 



Adult male. Upper surface pale brown, the head rather darker, 

 as well as some of the scapulars and the inner secondaries ; lesser 

 and median wing-coverts pale brown, like back, some of the latter 

 slightly tipped with fulvous, the greater ones dark brown, rather 

 more cUstinctly tipped with fulvous ; primary coverts and quills 

 deep brown, slightly tipped with huffy fawn-colour, some of the 

 fresh-moulted primaries clear ashy grey, with broad fawn-coloured 

 tips, lower surface of wing blackish, the base of inner web slightly 

 mottled with greyish near the base ; lower back and rump pale 

 brown, the upper tail-coverts white ; tail brown, with pale fulvous 

 tip, and having indistinct ashy bars ; lores whitish ; rest of under 

 surface of body pale brown, the under wing-coverts very shghtly 

 darker, the lowest series quite white ; cere, gape, and base of lower 

 mandible deep yellow ; bill horn-black ; feet deep yellow ; iris dark 

 brown. Total length 30 inches, culmen 3, wing 22, tail ll'T, 

 tarsus 4. 



Adult female. Total length 30 inches, wing 23-2, tail 11-5, 

 tarsiis 4. 



Young male. Above ashy brown, shaded with glossy pui-plish 

 brown on the back, scapulars, and wing-coverts ; median and greater 

 coverts blackish, shaded with ashy grey, and broadly tipped with 

 bright ochraceous fawn-colour, paling into fulvous on the extreme 

 tip, forming a triple band across the wing ; primary coverts and 

 quills blackish, broadly tipped with fawn-colour, like the wing- 

 coverts, both webs distinctly though irregularly barred with silvery 

 grey, these bars showing very distinctly on the secondaries under- 

 neath ; the primaries black below, grepsh on the inner web, thickly 

 mottled with bi'ownish ; lower back and rump ashy brown, like the 

 head, the lower feathers of the latter part more or less marked with 

 fawn-colour ; the upper tail-coverts entirely fawn-colour, paling into 

 fulvous on their tips ; tail dark brown, with a broad terminal band 

 of fawn-colour, mottled conspiciiouslj' with ashy grey on the outer 

 feathers, and taking the form of imperfect bars on the middle ones, 

 sometimes eight or nine being distinguishable ; sides of face and of 

 neck, as well as entire under surface of body, ashy brown, paler on 

 tarsal feathers ; under tail-coverts pale huffy fawn, some of the 

 under wing-covei-ts also marked with a terminal triangular spot of 

 the same colour ; bill (in dried specimen) black, jollow at gape and 

 base of lower mandible ; cere greenish ; feet yellow, claws black. 



VOL. I. s 



