Adult male.--General color above black, finely vermiculated with gray and dull reddish brown or with dull chestnut; crown mostly black with dull chestnut tips to the feathers; a distinct median line of buff from bill to neck; many feathers on back edged with buff or whitish buff; forehead and whole side of face pale buff, most of the feathers black tipped; chin, upper throat, and abdomen white; breast dark buff; a few black spots on sides of breast; a few feathers on sides, under wings, dull chestnut; quills brown with light edges; long alula-quill edged with white; coverts largely ochraceous-buff or dull chestnut and more or less marked with large black spots; long scapulars broadly edged with ochraceous-buff or pale yellow-buff. Iris white; upper mandible dark horn; lower mandible dull blue; legs and nails flesh-colored. Length, about 120; wing, 56.5 to 61; tail, 16.5 to 28; culmen, 9 to 10; tarsus, 16.5 to 18. Adult female.--Differs from the adult male in having median crown-line and sides of face pale straw or whitish; a narrow collar of dull chestnut; above generally darker and marked with a greater amount of dull chestnut. Wing, 60 to 64; tail, 18 to 22; culmen, 9.5 to 11.5; tarsus, 17 to 18. Young.--Immature birds are similar to adults but have the breast white, streaked with dark brown; upper parts more uniformly and less richly colored. Eggs.--White with numerous, obscure, lilac markings; around the larger end a band of dark sienna; larger end covered to middle of egg with a wash of dark brown; edge of this color-area well-defined and slightly irregular; smaller end of egg with a few small specks and a faint brown wash. Two eggs measure respectively 20 by 16 and 20 by 16.5. Another egg, measuring 20.6 by 16.2, is white, speckled with brown and has nearly one-half the surface, at the larger end, covered with dark vandyke-brown. Eggs are deposited in August so far as known. The only known specimens of Whitehead's button quail were purchased in the Quinta Market, Manila. It is said that they are trapped in the vicinity of Parañaque, some 7 kilometers from Manila. 8. TURNIX SULUENSIS Mearns. SULU BUTTON QUAIL. Turnix suluensis Mearns, Proc. Biol. Soc. Wash. (1905), 18, 83; McGregor and Worcester, Hand-List (1906), 8. Sulu (Mearns).