The Boat-billed Flycatcher, Megarynchus pitangua, is a passerine bird. It is a large tyrant flycatcher, the only member, monotypic, of the genus Megarynchus. It breeds in open woodland with some tall trees from Mexico south to Bolivia and Argentina, and on Trinidad. The nest, built by the female, is an open saucer of sticks. The typical clutch is two or three whitish eggs heavily blotched with brown. These are incubated mostly by the female for 17-18 days with a further 24 days to fledging.