National Audubon Society/ National Audubon Society (COR)/ Peter Alden (EDT)
(4)
Rachel Poliquin/ Nicholas John Frith (ILT)
(3)
Jonathan K. Alderfer (EDT)
(2)
Roger Tory Peterson (EDT)/ Richard K. Walton/ Robert W. Lawson
(2)
Alan Channing,Mark-Oliver Rodel
(1)
Alan Tennant/ Gerard T. Salmon (CON)/ Richard B. King (CON)/ Gerard T. Salmon/ Richard B. King
(1)
Alvaro Jaramillo/ Peter Burke (ILT)/ David Beadle (ILT)
(1)