GREEN-BACKED TAILORBIRD.

Pi-pit ma-na-ná-hi, Manila.

Luzon (Whitehead, McGregor).

Adult.—Differs from Orthotomus derbianus in having the entire back, rump, upper tail-coverts, and crissum olive-green and the rectrices edged basally with olive-green. A male measures: Wing, 49; tail, 47; culmen from base, 18; bill from nostril, 12; tarsus, 21. A female, wing, 50; culmen from base, 18; bill from nostril, 12; tarsus, 19.

Three eggs of the green-backed tailorbird from Isabela Province, Luzon, collected by Whitehead on May 29, 1894, are described as follows: “Shape ovate. Ground-color pure white, thinly spotted and dotted all over with brown-lake over-markings and a few pale reddish lilac under-markings. Measurements 16 mm. by 13 mm.

“The nest of the green-backed tailorbird is of the ordinary type, being a pocket formed by two leaves sewn together. It was placed among the herbage by the side of a path about 8 inches [20 cm.] from the ground. On the 19th of May a second nest was found on a small islet in a stream where a few slender large-leaved plants were growing just above the water. This nest contained two young birds.” (Grant and Whitehead.)

559. ORTHOTOMUS RUFICEPS (Lesson).
RUFOUS-HEADED TAILORBIRD.