44. SPIZAETUS. 271 



and tail deep sepia, narrowly tipped with white, the latter with 

 two distinct-whity brown bands and indications of a third one 

 nearer the base ; an indistinct eyebrow and sides of the face dull 

 rufous, with blackish streaks down the centre of each feather ; 

 throat white, with a broad median and lateral (malar) streak of 

 black ; breast pale rufous, the fore neck strongly marked with broad 

 black centres to the feathers ; rest of under surface dull white, 

 thickly banded with broad bars of dark sepia-brown, narrower on 

 the flanks and thighs ; under wing-coverts white, barred with dark 

 brown, like the abdomen ; bill black ; feet pale lemon-yellow ; iris 

 yellow. Total length 25-5 inches, culmen 1-65, wing 14-8, tail 10-8, 

 tarsus 3 •25. 



Young male. Brown, like the adult, the white bases to the feathers 

 showing conspicuously ; quills and tail much as in adult, the latter 

 with more bars on the outer feathers ; head and neck white, the 

 feathers more or less washed with rufous, with small dark streaks 

 down the feathers, much broader on the hind neck ; under surface 

 of body buffy white, the breast strongly rufescent, the chest with 

 broad central streaks of black, the breast varied with white bars ; 

 thighs and under tail-coverts white, thickly barred with dark brown, 

 the latter more broadly ; under wing-coverts and axillaries white, 

 more or less distinctly barred with blackish brown. Total length 

 25 inches, wing 13-8, tail 10-8, tarsus 3-2, 



Hah. Celebes. 



a. 



Juv. sk. Celebes. J. Gould, Esq. 



b. 5 ad. sk. Menado, Celebes. A. R. Wallace, Esq. 



c. (S ad. St. Macassar, Celebes. A. R. Wallace, Esq. 



]: 



8. Spizaetus alboniger. 



Nisaetus alboniger, Bhjth, J. A. S. B. xiv. p. 173 (1845). 

 Spizaetus borneonensis, Gray, Cat. Accipitr. 1848, p. 16. 

 Spizaetus alboniger, Blyth, J. A. S. B. xix. p. 335 (1850) ; Strickl. 



Oni. Syn. p. 71 (1855) ; Gould, B. Asia, pt. xv. (1863) ; Wall. 



Ibis, 1868, p. 215 ; Gray, Hand-l. B. i. p. 13 (1869). 

 Spizaetus nanus, Wall. Ibis, 1868, p. 14, pi. 1. 



Adult. Above black, with an occipital crest 2-75 inches in length, 

 the latter tipped with white ; quiUs dark brown, narrowly tipped 

 with whitish, crossed with bands of black, the subterminal one very 

 broad ; tail ashy brown, with two bands of black, one basal, the 

 other subterminal ; lores whitish, the sides of the face black, Kke 

 the crown ; a broad moustachial streak of black ; under surface of 

 body white, the breast plainly marked with large drops of black, 

 the beUy and thighs thickly banded with black, the abdomen and 

 under tail-coverts a little more broadly ; under wing-coverts white, 

 sparingly barred with black. Total length 22-5 inches, culmen 1-4, 

 wing 13, tail 9*5, tarsus 3-3. 



Young. Above pale brown, the back, scapulars, and small wiug- 

 covorts darker, the greater coverts, scapulars, and upper tail-coverts 

 tipped with white ; head and neck fawn-brown, the nuchal feathers 

 rather darker in the centre; an occipital crest (1*95 inch long) 



