Bicolored Mouse-Warbler

Powerfully built hawk of forests, especially hilly woods. Namesake crest is usually held low and not very visible. Adult has a gray head, brown wings, whitish underparts with thick orange-brown stripes in belly and streaks in breast, and white throat with black borders. Juvenile similar but with brown head, sparingly marked underparts, and very short crest. Appears stockier and relatively shorter-tailed in flight than other accipiters. Flying adults may also show a fluffy white clump of feathers on both sides of the tail.

Unremarkable-looking warm brown songbird. Endemic to Java’s montane and submontane broadleaf forests, where it is a common member of mixed flocks. Note warm rusty-toned wings and tail, long-tailed and round-headed profile, and slender dark line above the eye (sometimes inconspicuous). Song is a sad-sounding series of whistles. Calls include a fast rattling call, as well as a high-pitched, tinkling “ji’jink.”

Immense swan of frigid northern regions; breeds on the tundra, taiga, and steppe and winters in marshy lakes and wetlands, often in wild areas. Fairly straight neck, short tail, and sloping bill distinct from Mute Swan; told from smaller Bewick’s (Tundra) Swan by larger and pointed yellow patch at base of bill, also lower-pitched and more bugling calls. Juvenile often dingier through first winter than juvenile Bewick’s; juveniles of both usually found with adults as family groups.