248 MANUAL OF PHILIPPINE BIRDS. 
205. POLIOAETUS ICHTHYAETUS (Horsfield). 
GRAY-HE@@ED FISH EAGLE. 
Falco ichthyetus HoRSFIELD, Trans. Linn. Soc. (1821), 13, pt. 1, 136. 
Polioaetus ichthyaetus SHARPE, Cat. Birds Brit. Mus. (1874), 1, 452. 
Polioaétus ichthyaétus SHARPE, Hand-List (1899), 1, 279; Oatrs, Cat. 
Birds’ Eggs (1902), 2, 217; McGregor and Worcester, Hand-List 
(1906), 45. 
Basilan (Bourns & Worcester); Bongao (Hverett); Calamianes (Bourns & 
Worcester) ; Luzon (Whitehead); Mindanao (Steere Exp., Celestino) ; Mindoro 
(Bourns & Worcester, McGregor) ; Negros (Keay); Samar (Whitehead). Malay 
and Indian Peninsulas, Burmese provinces, Greater Sunda Islands, Celebes, Ceylon. 
“Adult male.—Above brown, paler on the interscapulary region and 
darker on the wings, primaries blackish; under surface of wing leaden 
brown, with a whitish spot at base of primaries; tail white, with a broad 
terminal bar of brown; entire head and neck all round clear ashy gray; 
breast brown, a little lighter than the back; belly, vent, thighs, lower 
flanks, and under tail-coverts pure white; under wing-coverts uniform 
ashy brown. Cere and bill blackish; feet dirty yellowish white; iris 
brown. Length, 660; culmen, 58; wing, 457; tail, 254; tarsus, 95. 
“Adult female.—Similar to the male but larger. Length, 757; wing, 
518; tarsus, 99. 
“Young.—Above brown, glossed with chocolate, most of the feathers 
of the upper surface with paler brown margins; feathers of the head and 
hind neck mesially streaked with fulvous; sides of face a little paler 
than the head, but streaked in the same manner; under surface of body 
pale brown, inclining to rufous, and longitudinally streaked with whitish 
down the center; thighs white, much mottled with rufous-brown; lower 
abdomen, vent, and under tail-coverts pure white; under wing-coverts 
pale brown, plainly streaked with white, the greater series almost entirely 
white, with a few brown markings; quills brown, white at base of inner 
web, the white extending further on secondaries ; which have ashy brown 
cross-bars; tail fulvous brown, mottled all over with dark brown, except 
at the tip, which is uniform dark brown, forming a very distinct band. 
“The bird above described, though full grown, is evidently immature 
as regards its plumage. The second stage is very similar to the adult, 
but is by no means so gray on the head and throat.” (Sharpe.) 
“Less common than Haliwetus leucogaster but frequents the same 
localities. Quite abundant at Lake Naujan in Mindoro.” (Bourns and 
Worcester MS.) 
A few individuals were seen near the Baco River in Mindoro and 
Celestino took a pair of young birds in northern Mindanao. 
