Black-throated green warbler
Sept 27, 2020, Rondeau Provincial Park, Ontario, Canada. A pond visitor. I don't think I've seen one where the black extends so far down the sides. We are wondering if it might be a cross breed. It seems to have the dark wide bib and sides of a golden-cheeked but the face is wrong. Any suggestions? Setophaga virens Black-throated Green Warblers are the easternmost representative of a quartet of closely related warblers including Townsend’s, Hermit, and Golden-cheeked.