This bird was pretty comfortable with us getting close. It was an active bug eater, fanning its tail to get bugs to jump or doing a "flycatcher" flight from a perch to snatch a bug and then fly back. It was constantly on the move in a green brushy area probably at around 6000' elevation on the road to La Bufa near San Sebastian del Oeste.
This species ranges from the Southwest US (rarely) down into Northern South America.