Poor Little Bird

8"X5.5" Pencil on paper

This poor we mite was lying on my porch this afternoon, she was still warm and I think that she must have battered herself against the window. There was no sign of injury and obviously hadn't been taken by a cat.

She should be easy to identify, her wings and back are olive green and her breast is speckled. Her legs are sort of coral and her beak is designed for insects not grains. But I can't seem to find her in any of my bird books or with any of the online tools. She is almost exactly 5 inches long and looks like a warbler of some sort to me. Do any of my Southern Ontario friends (or anyone in the eastern states for that matter) have any suggestions?