Black-faced Coucal

A pale powder-blue-and-white seabird with a faint grayish dark “M” across the upperwings. Note the dark blue “thumb mark” collar, the blue eye-stripe, the white eyebrow, the white throat, and the grayish cap. Restricted to two known breeding islands, Saint Paul in the South Indian Ocean, and Gough in the South Atlantic. Almost identical to Antarctic Prion, but bulkier and more heavy-chested, with a slightly wider bill. All but inseparable from Salvin’s Prion, with which it shares the breeding island of Gough, and with which it was once considered one species; MacGillivray’s is incrementally broader-billed, but birds seen at sea may not be identifiable.

A thrush-sized olive-colored songbird with a long, fairly heavy bill. Plumage uniform olive-green except for narrow yellow chin, yellow patch between the bill and the eye, and partial yellow eye-ring above the eye. Pairs or small groups occupy forest, degraded forest, edges, and plantations from sea level to foothills. Unmistakable; limited to the island of Buru. Song starts with several soft “pip” or “chek” notes, then explodes in a series of variable whistles, e.g. “WEE-WEE-WEE-WEK-pewee-pewee-WEE-WEE.” Calls include dry “chek” notes and rasping “chirrrik” calls.

Small, rare antbird found in lush cloud forest along the east slope of the Andes and in the tepui region of Venezuela, Guyana, and extreme northern Brazil. Male is dark gray with black throat and breast; extent of black is geographically variable. Female is brown with a pale throat. Similar to Slaty Antwren but lacks wing markings. Inhabits forest understory, where often encountered with mixed-species flocks. Song is a series of four to ten soft whistles.