Lead poisoning in waterfowl : proceedings of an IWRB workshop, Brussels, Belgium, 13-15 June 1991
1992
Pain, Deborah J. |
Waterfowl
The ring-necked duck in the Northeast
1958
Mendall, Howard L. |
The trumpeter swan : its history, habits and population in the United States
1960
Banko, Winston E. |
A half century of change in bird populations of the lower Chippewa River, Wisconsin
1955
Buss, Irven O. |
Mattison, Helmer M. |
Waterfowl of Japan
1949
Austin, Oliver Luther |
Waterfowl and their wintering grounds in Mexico, 1937-1964
1981
Saunders, George B. |
Saunders, Dorothy Chapman |
Habitat use and productivity of Canvasbacks in southwestern Manitoba, 1961-72
1982
Stoudt, Jerome H. |
Feeding ecology of Pintail, Gadwall, American Widgeon and Lesser Scaup ducklings in southern Alberta
1973
Sugden, Lawson G. |
Population dynamics of the Common Loon (Gavia immer) associated with mercury-contaminated waters in northwestern Ontario
1986
Barr, J. F. |
Breeding and wintering areas of Canvasbacks harvested in various States and provinces
1974
Geis, Aelred D. |