Gyrfalcon (2018-016)
Contributing photographers indicated by (ph.)
Initial observer(s):
Blake T. Matheson (ph.)
Corroborating observers and additional sources:
Richard S. Cimino
Craig R. Fosdick (ph.)
Fred Hochstaedter (ph.)
Lisa Fay Larson (ph.)
Aaron Maizlish
Jeff Miller
Don Roberson (ph.)
Shawn Wagoner