An immature female from Bohol is like the adult but the wing-feathers, including the black coverts, are widely tipped with white, and the feathers of crown and nape are edged with white and a little buff giving the head a streaked appearance. Iris light yellow; bill and nails black; cere waxy yellow; feet bright chrome-yellow.
“Female, not quite adult (type).—Above ashy gray, scapulars and quills plainly tipped with white, and washed with rusty brown, especially on the interscapular region; crown white, the hinder part inclining to ashy gray, plainly streaked with rusty brown; wing ashy gray, primaries darker, all the quills, as well as the coverts tipped with white, the lesser and median coverts black, forming a conspicuous shoulder patch; tail white, shaded with ashy toward the tip, the two center feathers entirely ashy gray; under surface of body entirely white, including the under wing-coverts; under surface of quills deep ashy gray toward the tip, whitish at base. Cere yellow; bill black; feet yellow; iris red. Length, 368; culmen, 28; wing, 305; tail, 157; tarsus, 38.” (Sharpe.)
“Quite abundant about the open fields, but difficult to shoot. Iris bright red; legs and feet yellow; nails black; bill black, except cere and gape which are bright yellow.” (Bourns and Worcester MS.)
“The sole egg of the Philippine black-winged kite in the collection is a blunt oval, smooth, and devoid of gloss. It is white, thickly smeared especially at the large end, with two shades of brown. It measures: 41.9 by 31.7 mm.” (Oates.)
The egg described above was collected by Everett in Mindoro, December 14.
Genus PERNIS Cuvier, 1817.
Bill small, elongate, the cutting edge regular or slightly sinuate; nostril a narrow slit; side of head covered with short close-set feathers; no bristles nor hairs about base of bill; wings long, primaries obliquely cut on inner webs; tail composed of long wide feathers; tarsus feathered in front for its upper half, its remaining surface covered with small scales.
193. PERNIS PTILORHYNCUS (Temminck).
CRESTED HONEY BUZZARD.
- Falco ptilorhyncus Temminck, Pl. Col. livr. 8 (1821), 1, 44.
- Pernis ptilonorhynchus Sharpe, Cat. Birds Brit. Mus. (1874), 1, 347; Hand-List (1899), 1, 271; Oates, Cat. Birds’ Eggs (1902), 2, 293, pl. 14, fig. 4; McGregor and Worcester, Hand-List (1906), 44.
- Pernis cristatus Blanford, Fauna Brit. Ind. Bds. (1895), 3, 406 (part), fig. 98 (head); Grant, Ibis (1897), 213.