Large striking flycatcher of tropical and subtropical forest and woodland; also in semi-open areas with taller trees. Perches mainly at mid-upper levels, often in the canopy. Fairly common in most areas, but uncommon and local in West Mexico. Told from widespread Great Kiskadee, which prefers more open and less wooded habitats, by dull olive upperparts (lacking the bright rusty wings and tail of kiskadee) and stouter bill, with a more strongly arched ridge along the top. The two species sound quite different.