Читать книгу A Manual of Philippine Birds - Richard C. McGregor - Страница 284
126. HYDROPHASIANUS CHIRURGUS (Scopoli). PHEASANT-TAILED JACANA.
ОглавлениеTringa chirurgus Scopoli, Del. Flor. et Faun. Insubr. (1786), 2, 92.
Hydrophasis chirurgus Sharpe, Cat. Birds Brit. Mus. (1896), 24, 69; Hand-List (1899), 1, 168; Oates, Cat. Birds’ Eggs (1902), 2, 71; McGregor and Worcester, Hand-List (1906), 30.
Calayan (McGregor); Luzon (McGregor); Mindanao (Mearns); Mindoro (Steere Exp., Bourns & Worcester). Indian Peninsula, Indo-Chinese countries to Malay Peninsula and greater Sunda Islands.
Adult in breeding plumage.—Sexes similar; head, chin, and throat white; occiput and a line on each side of neck black, behind this a large saddle of golden yellow; mantle and scapulars dark brown glossed with violet; back, rump, and tail black; lower parts, except chin and throat, dead black; first primary black, the other primaries mostly white, but with some black at their tips; remainder of wing white; axillars and wing-lining white. Iris brown, bill blue, paler at tip; legs blue; nails blackish. Length of male about 330; wing, 190; tail, 131; exposed culmen, 28; tarsus, 54; middle toe with claw, 75; hind toe without claw, 20; claw, 29. Length of female, 380; wing, 250; tail, 162; exposed culmen, 28; tarsus, 60; middle toe with claw, 85; hind toe with claw, 57.
Adult in non-breeding plumage.—Differs from the breeding plumage chiefly as follows: Upper parts earthy brown with little gloss; under parts, including tail and its coverts, white except a black plastron on fore breast which extends forward on each side of neck; golden collar replaced by a golden yellow band on each side; secondaries and coverts mostly earthy brown speckled with white.
Birds in intermediate plumage present endless combinations of the breeding and non-breeding plumage.
“Young.—Generally resembles the winter plumage of the adults, but is always distinguished by its rufous head, and in the first stage of plumage by the sandy rufous margins to the feathers of the upper surface; the dusky band of the sides of the neck is feebly indicated and the horseshoe collar on the fore neck is marked by a few spots of dusky blackish; the white on the primaries is more restricted, but the elongated tips are present.” (Sharpe.)
“Quite abundant about the Laguna de Naujan, in Mindoro. It runs about over the leaves of water plants, and when approached sinks its body in the water until only its head and tail can be seen. When wounded it dives, and sometimes hangs onto water plants below the surface until it dies.” (Bourns and Worcester MS.)
This jacana is abundant in Luzon in fresh-water swamps and on the borders of lakes.