Bornean Wren-Babbler

A fairly small bird of montane forest on Mindanao. Olive on the upperparts, darker in the wing and tail, with a blackish mask, dingy yellow underparts, and a pale gray throat. Usually found in mixed-species flocks with Cinnamon Ibon, Mountain White-eye, and Black-and-cinnamon Fantail. Similar to Yellow-bellied Whistler, but usually found at higher elevations, and has a thinner bill and dark mask. Gives a musical whistle and also a harsh grating call.

Medium-sized flycatcher-like bird with a long pointed bill. Male is bright white with a black face and throat. Female is entirely dark overall. Juvenile is rufous above and paler buff below. Endemic to the Chuuk Islands of Micronesia, where it primarily inhabits remnant upland native forest, extensive mangroves, and small forested atolls. Less frequently in degraded lowland forest. Favors areas with a dense understory, where it forages singly or in small groups, moving slowly through the foliage. Sparse and declining as a result of habitat loss. Gives low whistles and a nasal “jeer!”

Small, sprightly bird of mixed-species flocks in the rainforest canopy. Note plain appearance with unmarked olive-green wings and back that contrast with buffy face and chest. Forages in leaf clusters at the ends of high branches, often hanging upside-down. Unlikely to be seen in forest understory or away from flocks. Delivers short, snappy song over and over while foraging.