The tyrant flycatchers of the Americas are the largest family of birds in the world with over 400 species. They perch upright, have an ample tail, and a rather large head with wide, flat bill. They are mostly colored in greens, yellows, grays, and browns, the Vermilion Flycatcher being one notable exception. They often remain motionless for extended periods of times and then sally forth to snap up flying insects and return to the same or nearby perch.

The Phainopepla of the Southwest deserts is blackish with a crest. Waxwings also are similar in general shape and behavior to flycatchers, also with a crest.