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Archival DescriptionPopulation trends in water fowl wintering in the Toronto region, 1929-1976 : [manuscript]
Population trends in water fowl wintering in the Toronto region, 1929-1976 : [manuscript]
Waterfowl populations in the vicinity of the Leslie Street headland, Toronto, Ontario, October 1975 to September 1976 : [manuscript]
Waterfowl populations in the vicinity of the Leslie Street headland, Toronto, Ontario, October 1975 to September 1976 : [manuscript]