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Trevor Barton: Marsh Harrier
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Trevor Barton: Wigeon and Friends
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Trevor Barton: Brent Geese
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Trevor Barton: Brent in Sihouette
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Trevor Barton: Lapwing
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Trevor Barton: Lapwing
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Trevor Barton: Cormorant
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Trevor Barton: Cormorant
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Trevor Barton: Shoveler