The black-and-white tanager (Conothraupis speculigera) is a tanager found in the Tumbes region of southwestern Ecuador and northwestern Peru; it migrates eastwards as far as Acre.

The male is black with a grey rump, white underparts and a white wing-speculum. It is longer-billed than the superficially similar black-and-white seedeater and lacks the black flanks and chalk-white bill of the related cone-billed tanager. The female is olive with faintly mottled, yellow-tinged underparts. Both sexes have a reddish iris and a greyish bill.

(From Wikipedia)