Blue-winged Warbler (2019-018)
Contributing photographers indicated by (ph.)
Corroborating observers and additional sources:
Ryan Andrews
David J. Barton (ph.)
Thomas A. Benson (ph.)
Trish Gussler (ph.)
William Hopson (ph.)
Linda J. LeRoy (ph.)
Guy McCaskie
Martin Meyers (ph.)
Linda Pittman (ph.)
Casey N. Ryan
Edana Salisbury
Justyn T. Stahl (ph.)