White-fronted Redstart

Chunky, skulking warbler that favors dense undergrowth. Yellow below and olive above with blue-gray head and chest. Blacker lores set off distinctive white arcs above and below eye. Adult males show darkest head; females and immatures have paler gray head and whitish throat. Found in thickets, clearcuts, open mixed forests, and riparian zones. Breeds primarily in mountainous regions of western North America; winters from Mexico to Costa Rica. Compare with Mourning Warbler, but little range overlap, and note longer tail and white eye-arcs on MacGillivray’s.

Unique black-and-white monarch endemic to Yap, in Micronesia, where it inhabits various forested lowland habitats, including mangroves and coastal scrub. Male has a white body and black head, wings, and tail. Female is black overall, with a white collar that widens at the chest. Juvenile is dull brown overall with a grayish head and buffy underparts; older immatures are blotchy black-brown-and-white. Forages slowly and methodically. Gives rasping and high-pitched squealing calls. Song is a series of bright, high-pitched whistles.

Tiny resident of tall rainforest. Wary and can be difficult to see well; note distinctive sputtering alarm call, tiny size, plain face, and large white (male) or buffy (female) wing spots. Generally found in pairs near treefall gaps and other places with dense understory; does not follow mixed-species flocks. Forages in low vegetation, rarely venturing more than a meter or two above the ground. Song of male is somewhat similar to Common Scale-backed Antbird, but has thinner quality and does not rise in pitch.