Its habitat is coastal mangrove swamps and neighbouring woodlands. The small feather-lined cup nest is built in a mangrove tree, and the normal clutch is two brown-blotched buff eggs. Nests are often parasitised by shiny cowbirds.
Description
The bicolored conebill is 11.4 cm long and weighs 11 g. The adult is grey-blue above and buff-tinged grey below, with red eyes, pink legs and a sharp, pointed bill. The primary flight feathers are bluish with brown edgings. The sexes are similar, although the female may be a little duller, but immature birds are greenish above and have pale yellow underparts. Birds sometimes breed in immature plumage.
Diet
These warbler-like birds eat mainly insects and occasionally seeds. The bicolored conebill's call is a thin tseep.