Small, rather drab, crested flycatcher of arid scrubby woodland in the interior highlands of southwest Mexico. Mostly retiring and easily overlooked unless singing. Looks similar to several species of Empidonax flycatchers (such as Dusky Flycatcher) and even jerks its tail upwards like Dusky, but note the spiky crest (can be held flattened), bright pinkish-orange underside to the bill, and voice (does not have a “whit” call like most Empidonax).