Rufous-sided Honeyeater Ptiloprora erythropleura

A medium-sized honeyeater of montane forest in western New Guinea. Dark gray-brown back and wings with pale rufous edges to the flight feathers, gray face and chest with deep rufous flanks. Faint streaking overall, strongest on the head. Similar to Gray-streaked but Rufous-sided is smaller with less distinct streaking and red rather than gray eyes. Call, a mournful, whistled up-and-down “wiiiiuuuu” or down-up-down “piiuuweew”.