Biak Monarch

A distinctive whistler of dark, dingy appearance. Golden-olive above and bright yellow below, with a black hood and chest. Female golden below and olive above, with a gray head and a white throat. Mainly found in primary forest above 1200 meters of elevation, but does occasionally wander lower. Oriole Whistler also occurs but male has a bright golden throat, neck, and belly, and female is dark brown above and beige streaked with ruddy below. Bougainville Hooded Whistler’s voice is a mix of loud, almost electronic staccato whistles.

A brown owl with a rounded head, yellow eyes, and rufescent barred underparts. Inhabits forest in the lowlands and lower foothills, where it usually occurs in territorial pairs. Confined to the North Moluccas, where it overlaps with migrant Northern Boobook and Barking Owl, but can be separated from those species by its barred underparts and very different voice. Song is a gruff, abrupt, two-note frog-like “woo-wooo” with a slightly longer second note.

Medium-sized oropendola of montane forests. Evenly olive-green, with a dark eye and pale bill. Smaller than the similar Russet-backed Oropendola, with a darker olive head. Weaves hanging nests in small colonies, and is found most frequently around forest edges and flying above the canopy. Song is a variable jumble of liquid whistles and pops; listen also for its loud “chak” call notes.