Adult male in breeding plumage.—Differs from the winter plumage in being much more variegated, the whole of the back being spotted with white, the spots being arranged in pairs on the edges of the feathers, which are also tipped with a bar or twin spots of white; the whole of the head and neck streaked with white, and the brown streaks on the side of the face, fore neck, and chest very broad and distinct, the sides of the upper breast being brown, very much mottled with bars of white. Length, 236; culmen, 35; wing, 137; tail, 55; tarsus, 30.

Adult female in breeding plumage.—Does not differ in color from the male, but is not quite so strongly marked. Length, 229; culmen, 38; wing, 142; tail, 50; tarsus, 33.

Young in autumn plumage.—Scarcely differs from the winter plumage of the adult, but, when freshly molted, it has indistinct margins of ashy bronze on the feathers of the upper surface; the tail-bands are narrower on the center feathers, while the subterminal band is broader than in the adults.

“The change to the summer plumage is apparently effected by a distinct molt, which takes place while the bird is in its winter quarters, and in many instances, especially in the case of the males, the summer plumage is completely assumed before the species leaves for its breeding place.” (Sharpe.)

Genus HETERACTITIS Stejneger, 1884.

Bill straight, longer than tarsus; back, rump, and tail-coverts uniform in color.

107. HETERACTITIS BREVIPES (Vieillot).
POLYNESIAN TATTLER.

Bantayan (McGregor); Batan (McGregor); Basilan (McGregor); Bohol (Everett, McGregor); Cagayancillo (McGregor); Calayan (McGregor); Cebu (Everett, McGregor); Cuyo (McGregor); Leyte (Everett); Lubang (McGregor); Luzon (Whitehead); Malanipa (Murray); Mindanao (Steere Exp., Goodfellow); Negros (Steere Exp., Bourns & Worcester); Palawan (Platen, White); Siquijor (Steere Exp., Bourns & Worcester); Ticao (McGregor). Eastern Siberia; in winter China to Malay Archipelago and Australia.