It's a ruby-throated. A dozen or so would commit suicide every year attacking reflections of themselves in windows at my friend's house in PA, and he would go out and sadly collect the little bodies for examination. Tried hanging things in the window to get them to stop, to little avail. My family lived just down the road, but for some reason at our house it was not hummingbirds but the male cardinals would do the same thing. Among birds the males of the species are often more beautiful than females, but otherwise their survival instinct leaves as much to be desired as the more plain males of other classes of animal.