Point Pelee National Park of Canada
Birds of Point Pelee National Park
© Parks Canada
Warbler, Black-throated Blue
-Dendroica caerulescens (Gmelin)
Upper parts mainly dark greyish-blue, occasionally with some black spots on back; a small white patch at the base of the primaries; no wing bars; outer feathers of tail with large white patches reaching to near ends; sides of head, throat, upper breast, and sides black; rest of under parts white.