Collared Treepie

Small, compact gray-and-white tanager. Found in high-elevation elfin forest and humid scrub around the treeline. Brownish gray above, paler white and gray below; note the light cream-colored eye. Pairs and small groups often join mixed-species flocks with other tanagers.

A slow-moving and occasionally tail-twitching species of woodland thickets and dense cover; often found in mixed-species flocks. Note its black face and crown that is boldly marked with white spots and contrasts sharply with an entirely white throat. The similar Gray-crowned Palm-Tanager has a gray crown and a gray center to the throat. Vocalizations include a high thin “tseeoo” and “ts” as well as a nasal “byu.”

An acrobatic, swift-like raptor with angular wings and a massive gape; capable of snatching prey from the air and devouring it in a flash while still on the wing. Dark with varying amounts of white on the underside; African birds have patchy white throughout the underparts, while white is restricted to the throat and lower belly on New Guinean birds and solely to the throat in Southeast Asian birds. Inactive during the day; hunts at dawn and dusk, and occasionally into the night if light is sufficient. Generally uncommon and localized, most reliably encountered near large bat roosts in forested areas, but can also be seen over open forest, fields, and fringes of habitation.