White-rumped Babbler

Extremely rare, large, elongated brown warbler with a long slender bill. Fairly similar in appearance to West Himalayan, Chinese, Baikal, and Spotted Bush Warblers, but breeding ranges do not overlap. Like other bush warblers, typically very skulking and furtive, preferring to run instead of fly when threatened. Emerges onto small bushes to sing, producing a dull clicking that would underwhelm a grasshopper. Breeds in weedy and bushy slopes in open alpine and subalpine areas; wintering habitat poorly understood but presumed to be similar habitat at lower altitudes. Very few sightings in recent years.

A fairly small owl of lower-elevation montane forest on Luzon. Dark brown on the head, chest, and upperparts, with barred flight feathers. Eyebrows, beard, and belly whitish, with some patterning. Overlaps geographically with Philippine Scops-Owl, but Luzon is smaller, usually found at higher elevation, and has yellow rather than orange-brown eyes. Voice includes a single slightly rising then falling whistled note, repeated at intervals.

Small, dark, crested tit of montane and hilly coniferous forests. Lack of white on the wings (except for large cheek patch) and erect crest separate it from Coal Tit. The namesake rufous nape patch is small and fairly difficult to see. Rufous-vented Tit is extremely similar in appearance, and the two species overlap in the central and western Himalayas, but note present species’ much more extensive black breast. An occasional member of mixed-species flocks in the winter. Calls variable, include a cheery “pi-chew, pi-chew”, bright “chewee, chewee”, and high-pitched, squeaky “cheee”s and “seee”s. Song typically consists of several high-pitched whistles, followed by buzzes, trills, or descending notes.