Alapi lugubre Myrmoborus lugubris

Attractive antbird with a short tail. Males have uniform gray backs, white-gray underparts, and a black face, while females have cinnamon backs and may have a black mask. Note that both sexes lack conspicuous wing markings. Found in the understory of forest near rivers and on river islands, where it forages on the ground, usually apart from mixed-species flocks. The song is a long series of descending clear notes, finishing with harsher notes.