Eygenraam, J A
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The Wildfowl Trust Eleventh Annual Report - Articles
Goose-netting in the Netherlands
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The Wildfowl Trust Thirteenth Annual Report - Articles
Wildfowl research and conservation in Europe in 1961
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The Wildfowl Trust Fourteenth Annual Report - Articles
Initial direction tendencies in the European Green-winged Teal
Abstract PDF