Palau Scops-Owl

A small heron that hugs rocky coastlines. Light-morph individuals are usually white all over, though some may show patches of gray. Dark-morph individuals are entirely dark gray. Both morphs have a yellowish green bill and legs. Light morph adults are distinguished from egrets in the area by their distinct short-legged appearance and noticeably thicker bill.

Small plump leaf warbler. A “Pallas’s-type” leaf warbler: stout, with a pale rump, crown stripe, and prominent brow stripes. Olive-yellow above with a faint gray wash on the nape. Chinese is distinguished from Pallas’s by its paler, more faded-looking brow and crown stripes, less yellow suffusion all over the body, less compact appearance, and less obvious or absent upper wingbar. Extremely similar Gansu Leaf Warbler and Lemon-rumped Warbler can be difficult to separate; note Chinese’s slightly more elongated and less rounded appearance, a lack of a distinct hook under the end of the brow stripe, less contrasting and more yellowish head patterning, and paler yellowish secondaries. Forages actively, often hovering and hopping about at mid-level. Breeds in montane broadleaved deciduous or mixed forest; moves to lower elevations in winter. On average, found at lower altitudes than Lemon-rumped and Gansu. Lengthy song is unique and bizarre, with a twanging, grating quality: “btrichi-btrichi-btrichi.” Call is an explosive “wip!”, often repeated in medium-length series on the breeding grounds.

Males are striking with a mostly glossy black body, but with a red forehead, crest, and back. Females are uniformly olive-green and also crested. Locally common in gallery forests embedded in savannas where it often accompanies mixed-species flocks. The song is a trilling series of alternately soft and loud whistles.