prairie warbler Setophaga discolor

Small warbler, yellow overall with black streaks on sides and unique face pattern. Upperparts are duller olive. Reddish streaks on back are distinctive, but can be difficult to see or absent on immatures. Long tail is often pumped up and down, but not as consistently as Palm Warbler. Forages for insects in a range of shrubby habitats, from cedar-studded fields to regenerating woods to mangroves in Florida. Winters in Florida and the Caribbean.