32 
Birds of Celebes; Falconidae. 
Young. A. virgatus gularis. Above a somewhat greyish dark brown, the nape a httle 
varied with white, the hind neck with rufous; wing-coverts, secondaries and feathers 
of back terminally margined with rufous; tail hair-brown, crossed with four dark 
bars, the outer feathers with about eight; throat and under tail-coverts white, the 
former with a slight trace of a gular streak; remaining under surface white, marked 
with streaks of rufous brown on the breast, with heart-shaped spots and bars on the 
abdomen, sides, thighs and under wing-coverts (Celebes — Eiedel, St. Petersburg 
Museum). 
Wing 170 mm; tail 122; tarsus 45; middle toe 27 (without claw), culmen from 
cere 9. The young of Accipiter rhodogaster readily distinguishes itself from the young 
of A. virgatus by the hazel-rufous of its upper plumage, barred on the wings and tail 
and spotted on the back with black; also the middle toe (32 mm) and the beak (13 mm) 
are longer. 
GENUS SPIZAETUS Vieill. 
The Hawk-eagles are powerful birds of large-medium size (larger than a 
Eaven); with or without a crest; wing somewhat short, secondaries long, 
from carpus to the tip of the secondaries about five-sixths of the 
length of the wing; tomia festooned; tarsus completely feathered down to 
the base of the toes; toes somewhat short; claws large, strongly hooked, the 
hinder one nearly half as long again as the toe-joint. The species of the genus 
are stationary, about ten in number, found in the Oriental Region as far as 
Celebes, Africa, Central and South America. They prey upon large birds, 
mammals, lizards, and lay one or two eggs. 
+ *12. SPIZAETUS LANCEOLATUS Temm. & Sckl. 
Celebesian Hawk-eagle. 
Plates II and III. 
Spizaetus lanceolatus (1) Temm. & Schl. (Celebes tantum). Faun. Jap. Aves 1845, 8; 
(2) Bp., Consp. 1850, I, 29 partim; (3) Walk, Ibis 1868, 13; (4) Pelz., Verb, 
z.-b. Ges. Wien 1872, 426 (Am!); (5) Sharpe, Cat. B. 1874, I, 270; W. Bias., 
J. f. 0 . 1883, 134; (6) id., Ztscbr. ges. Orn. 1886, 195; (7) Biittik. , Zool. Erg. 
Webers Reise in Ost-Ind. 1893, IH, 272; (8) M. & Wg., Abb. Mus. Dresden 1895, 
Rr. 8, p. 4; (9) ud., ib. 1896, Nr. 1, p. 7. 
h. Spizaetus cirratus part. (1) Schl., Mus. P.-B. Astures 1862, 9 (Celebes); (II) id., Valkv. 
Ned. Ind. 1866, 16, 55, pi. 7, f. 2 (Celebes) et f. 3 (Sula); (3) id.,. Rev. Accip. 1873, 
57 (Celebes, Sula); Rosenb. , Malay. Arch. 1878, 271. 
c. Spizaetus fasciolatus “Temm.” (err.) Schl., Astures 1862, 9; id., Valkv. 1866, 53; id.. 
Rev. Accip. 1873, 58. 
d. Limnaetus lanceolatus Gray, HL. 1869, I, 13, pt.; (1) Wald., Tr. Z. S. 1872, VIH, 
34, 110; Gurney, Ibis 1877, 424; (2) Meyer, Ibis 1879, 56; (3) Salvad., Orn. 
Pap. 1880, I, 5; Gurney, Diurn. B. of Prey 1884, 49; Guillem., P. Z. S. 1885, 545. 
