Kirby, J S
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Wildfowl 41 - Progress Reports
Wildfowl counts in the U.K., 1988-89
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Wildfowl 47 - Standard Papers
Scaup Aythya marila numbers and the Cockle Cardium edule fishery on the Solway Firth: are they related?
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Wildfowl 47 - Standard Papers
A history of wildfowl counts by The Wildfowl & Wetlands Trust
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