Author
Peterson, R. T.
2
Audubon Society
1
Brodo, Irwin M.
1
Burt, W. H.
1
Covell, C. V.
1
Dunning, John B.
1
Elphick, Chris
1
Grossenheider, R. P.
1
Laurie-Bourque, Susan
1
McKenny, M.
1
Milne, Lorus J.
1
Milne, Margery
1
National Audubon Society
1
Nehring, C.
1
Opper, J.
1
Pyle, R. M.
1
Rayfield, S.
1
Rayfield, Susan
1
Sharnoff, Stephen
1
Sharnoff, Sylvia Duran
1
Sibley, David, 1961-
1
Wagner, David L.
1