Noronha Vireo

The Noronha vireo is 14 cm (5.5 in) long and weighs 11.5 to 25.1 g (0.41 to 0.89 oz). The sexes have the same plumage. Adults have a buffy supercilium and brownish lores. Their crown, nape, and upperparts are dingy grayish olive that becomes more greenish on the lower back, rump, and tail. Their primaries and secondaries are grayish olive with greenish edges on the outer webs. Their throat and underparts are dull buffy whitish. They have a brownish iris, a brownish horn bill with a paler base to the mandible, and pale bluish gray legs and feet. Juveniles have a rich rusty brown crown and back. Voice: The Noronha vireo's song is a "melodious weet a weet, chewegoo, whit, whit". Its alarm call is "tschrrr" and other calls include "a scolding harsh skeeur and a high thin whistle".