Black-throated Blue Warbler

Black-throated Blue Warbler male (Dendroica caeruleascens).
Black-throated Blue Warbler (Dendroica caeruleascens). Female.
Black-throated Blue Warbler male (Dendroica caeruleascens).
Black-throated Blue Warbler male (Dendroica caeruleascens).
Black-throated Blue Warbler male (Dendroica caeruleascens).