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The Cry of the Gull

Accession number: 
1977.0033
Production Years: 
1977

Languages:

Film Properties: 
Length (minutes): 
27
Holding Institutions: 

University of Guelph, Guelph, Ontario: 16mm.

Library and Archives Canada: 3/4".
"The health and vitality of the gull reflect the health of the Great Lakes. When the gull population diminishes, biologists hasten to discover the reasons. The herring gull on Lake Ontario is in trouble, and so is the water. This film sounds a warning about the pollutants that are being pumped into these waters daily."

Bibliography: 

University of Waterloo Audiovisual Services Catalog.
"This film shows how industrial wastes like mercury, PCB and mirex are causing serious reproduction problems in herring-gull colonies on Lake Ontario."

Online Database National Film Board of Canada.
"The health and vitality of the gull reflect the 'health' of the Great Lakes. When the gull population diminishes, biologists hasten to discover the reasons. The herring gull on Lake Ontario is in trouble, and so is the water. This film sounds a warning about the pollutants that are being pumped into these waters daily."