Tyrannidae, the tyrant flycatchers, are the largest family of birds, found throughout the Americas. They are characterized by their perching style, upright posture, and habit of sallying out from a perch to catch insects in flight. Their bill shape and size vary depending on diet, but they typically have a relatively broad bill for catching flying prey. Plumage is diverse, but many species are relatively drab, while others have bright colors or crests. They build a variety of nest types, depending on the species.