"Young.--Like the old female, but blackish brown above, the wing-coverts maroon-chestnut, and all the upper parts spotted with white instead of ocherous. 'Bill bright yellow, tinged with green; culmen black; feet yellowish green; iris golden yellow.' (Everett.)" (Sharpe.)
"A single specimen secured by us while with the Steere Expedition has been identified by Grant as Ardetta eurythma." (Bourns and Worcester MS.)
Genus DUPETOR Heine and Reichenbach, 1890.
This genus appears to be very near Ixobrychus but it may be recognized by the blackish or slate-colored upper parts.
Ardea flavicollis Latham, Index Ornith. (1790), 2, 701. Dupetor flavicollis Sharpe, Cat. Birds Brit. Mus. (1898), 26, 247; Hand-List (1899), 1, 203; Oates, Cat. Birds' Eggs (1902), 2, 133; McGregor and Worcester, Hand-List (1906), 36.
Cebu (Bourns & Worcester); Luzon (Heriot); Marinduque (Steere Exp.); Mindanao (Everett, Steere Exp., Goodfellow); Negros (Keay). Celebes, Ceylon, Malay and Indian Peninsulas, Indo-Chinese countries, Greater Sunda Islands, southern and central China.
"Adult male.--Above dark slaty gray, feathers of back and scapulars somewhat pointed and with a slight hoary gloss; wings and tail blackish, glossed with slate-color on the coverts, and with green on some of the latter and on the quills; crown and crest-plumes slaty gray; sides of face and cheeks black, the latter slightly mottled with rufous; from the hinder part of the cheeks a band of golden straw-color runs down the sides of the neck, the lower feathers being elongated; throat and fore neck prettily variegated with chestnut, black, and white, the chestnut predominating on the outer webs of the feathers and the white on the inner webs, with a longitudinal streak of black at the end of the latter, the long overlapping feathers on the sides of the chest being slaty gray with white margins, so that the general appearance of the throat and chest is streaked; remainder of under surface of body slaty gray, including the under wing-coverts, axillars, and quill-lining. 'Bill dusky reddish brown, lighter below; facial skin purplish brown; eyelids bluish; feet dark brown; claws dark horn-color; iris golden brown or pale red.' (Oates). Length, 508; culmen, 84; wing, 203; tail, 63; tarsus, 67; middle toe with claw, 76.