White Wagtail (1990-200A)
Contributing photographers indicated by (ph.)
Initial observer(s):
Douglas E. George
Corroborating observers and additional sources:
Jon L. Dunn
Steve N. G. Howell
Paul E. Lehman
Guy McCaskie
Robert J. O'Brien (ph.)
Michael A. Patten
Don Roberson (ph.)
David Sibley
Sophie Webb