Dusky Warbler (2017-100)
Contributing photographers indicated by (ph.)

Initial observer(s):
Tracy Drake (ph.)

Corroborating observers and additional sources:
Thomas A. Benson (ph.)
Jon L. Dunn
Curtis A. Marantz (ph.)
David W. Nelson (ph.)
Edana Salisbury
Desmond Sieburth
Christopher Taylor (ph.)
Ryan S. Terrill (ph.)

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