This handsome black and gray, white and yellow bird is a male Yellow-rumped Warbler. According to AllAboutBirds, "The Yellow-rumped Warbler has two distinct subspecies that used to be considered separate species: the "Myrtle" Warbler of the eastern U.S. and Canada's boreal forest, and "Audubon’s" Warbler of the mountainous West. The Audubon’s has a yellow throat; in the Myrtle subspecies the throat is white." But you can't miss that yellow rump!
All photos are © Gregg Thompson and may not be used without permission.