It is sexually monomorphic.[2] It has an olive-green back, rust-colored wings, a rust-colored tail, and a yellow abdomen.[3][4]
Vocalization
Both sexes vocalize. [2] Their most common vocalization has been described as a "tu-wee" sound. They also produce "piping whistles" and "raspy chur-chatters."[2]
Breeding and Nesting
It breeds during New Guinea's wet season, and lays eggs in cup-shaped nests low to the ground in trees.[2] Little research has been done on clutch size, but one egg is recorded as a seemingly typical clutch size.[2]
^ abcdeDonaghey, Richard Hallam, and Carolyn A. Donaghey. "Nest, egg and vocalisations of the Green-backed Robin Pachycephalopsis hattamensis in the Arfak Mountains, West Papua." Kukila 22 (2019): 21-29.
^Coates, B.J. 1990. The Birds of Papua New Guinea. Volume II. Passerines. Dove Publications, Brisbane.
^Pratt, T.K. & B.M Beehler. 2015. Birds of New Guinea. 2nd edition. Princeton University Press, Princeton, New Jersey, USA.