214 MANUAL OF PHILIPPINE BIRDS. 
174. CIRCUS MELANOLEUCOS (Pennant). 
PIED MARSH HAWKE. 
Falco melanoleucos PENNANT, . Zool. (1769), 2, pl. 2. 
Circus melanoleucus SHARPE, Cat. Birds Brit. Mus. (1874), 1, 61; Hand- 
List (1899), 1, 245; BLANForD, Fauna Brit. Ind. Bds. (1895), 3, 385; 
OaTEs, Cat. Birds’ Eggs (1902), 2, 237; McGrecor and WoRcESTER, 
Hand-List (1906), 41; McGregor, Phil. Jour. Sci. (1907), 2, sec. A, 
322, pl. 1. E 
Bantayan (McGregor); Basilan (Mearns); Bohol (McGregor); Calayan (Mce- 
Gregor); Guimaras (Steere Exp.) ; Luzon (Steere Exp., Whitehead) ; Mindanao 
(Steere Exp., Celestino) ; Negros (Bourns & Worcester, Keay); Sibay (McGregor 
& Worcester) ; Sulu (Guillemard) ; Ticao (McGregor). Eastern Siberia and Mon- 
golia; in winter to China, northeastern Indian Peninsula, and Indo-Chinese 
countries. 
“Adult male-——Upper parts glossy black; rump and upper tail-coverts 
white, the latter with two or three broad cross-bars of black or ashy 
gray, the former also shaded with gray; wing-coverts silvery gray, mar- 
gined with white, with a broad band of black feathers extending from 
the bend of wing parallel with its margin and joining the median coverts, 
which are also black; primaries black; primary-coverts and secondaries 
silvery gray, except the innermost, which are black; tail entirely silvery 
gray, tipped with white, below and on the inner webs white; sides of 
face and neck, throat, and chest glossy black; rest of under surface, in- 
cluding under wing- and tail-coverts, pure white. Bill and cere black; 
feet yellow; iris yellow. Length, 457; culmen, 25; wing, 356; tail, 216; 
tarsus, 76.” (Sharpe.) 
“Adult female.—Above dark brown, the feathers of the crown and neck 
with rufous edges, those of the nape broadly bordered with white; a 
well-marked ruff of small white or buffy white feathers with brown 
shaft-stripes; around eyes whitish; cheeks and ear-coverts dirty white 
or pale rufous with brown streaks; smaller coverts along forearm white 
(in younger birds rufous) with blackish brown shaft-stripes, median 
coverts brown with gray or white spots and bars, larger coverts dusky 
gray with a broad subterminal blackish band and another near the base; 
primaries outside blackish brown; secondaries gray, with blackish cross- 
bands, beneath all are grayish or whitish with dark bands; upper tail- 
coverts white, sometimes with rufous-brown drops or bands; tail gray 
with dark brown cross-bands; lower parts white, with dark brown shaft- 
stripes, broad on the throat and breast, narrower and sometimes disap- 
. pearing on the abdomen. 
“Young birds are more uniform brown above than the adult female, 
and have no gray on the wings or tail, which are brown with darker 
bands; the ruff is ill-marked at the sides, but there is a large white brown- 
streaked nuchal patch and another patch of buff-edged brown feathers 
