Robert D. Smith/ John C. Peterson
(3)
John C. Peterson/ Robert D. Smith
(2)
John C. Peterson/ William J. Dekryger
(2)
Linda H. Peterson (EDT)/ John C. Brereton (EDT)
(2)
Douglas W. Woods/ John C. Piacentini/ Susanna W. Chang/ Thilo Deckersbach/ Golda S. Ginsburg/ A. Peterson/ Lawrence Scahill/ John T. Walkup M.D./ Sabine Wilhelm Ph.D.
(1)
Douglas W. Woods/ John C. Piacentini/ Susanna W. Chang/ Thilo Deckersbach/ Golda S. Ginsburg/ Alan L. Peterson/ Lawrence Scahill/ John T. Walkup M.D./ Sabine Wilhelm Ph.D.
(1)
John C. Kricher/ Gordon Morrison (ILT)/ Gordon Morrison/ National Audubon Society (COR)/ National Wildlife Federation (COR)/ Roger Tory Peterson Institute (COR)
(1)
John C. Kricher/ Gordon Morrison (ILT)/ Roger Tory Peterson Institute (EDT)
(1)
John C. Kricher/ Roger Tory Peterson (ILT)/ Roger Tory Peterson (EDT)/ Gordon Morrison (ILT)
(1)
John C. Peterson/ William Dekryger
(1)
John C. Poirier (EDT)/ Jeffrey Peterson (EDT)/ Chris Keith (EDT)
(1)
Kent E. Richter (EDT)/ Eva Maria Rapple/ John C. Modschiedler/ R. Dean Peterson
(1)
Linda H. Peterson (EDT)/ John C. Brereton (EDT)/ Joseph Bizup (EDT)/ Anne E. Fernald (EDT)/ Melissa A. Goldthwaite (EDT)
(1)
Linda H. Peterson/ John C. Brereton
(1)
Melissa A. Goldthwaite (EDT)/ Joseph Bizup (EDT)/ John C. Brereton (EDT)/ Anne E. Fernald (EDT)/ Linda H. Peterson (EDT)
(1)
Peter C. Alden/ John Sill (ILT)/ Roger Tory Peterson (EDT)/ Roger Tory Peterson
(1)
Roger Tory Peterson (EDT)/ Carleton Ray/ John Douglass (ILT)/ C. Richard Robins/ National Audubon Society (COR)/ National Wildlife Federation (COR)/ Roger Tory Peterson Institute (COR)
(1)
W. C. Madden/ John E. Peterson
(1)