Sao Tome Ibis

Overview

The São Tomé ibis (Bostrychia bocagei), also known as the dwarf olive ibis or the dwarf ibis, is a critically endangered bird that is endemic to São Tomé off the western coast of Central Africa in the Gulf of Guinea. Discovered in the 1800s by Francisco Newton, it was once thought to be a subspecies of the larger olive ibis, but is now classified as a distinct species.
Living with 19 other species of endemic birds on the island, the dwarf ibis is one of 10 that are threatened for extinction. B. bocagei prefers the southern forests almost exclusively living there in nests that are high up in the trees to avoid predators.

Summary from Wikipedia, available under CC BY-SA 4.0.