Alan Williams / Black-tailed Godwits (Limosa limosa) and Knots (Calidris canutus) in flight in early morning light, Dee Estuary, Merseyside, England, UK, February
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Alan Williams / Knot (Calidris canutus) flock in flight over Dee Estuary with the North Wales coast in background. UK, December 2010.
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Alan Williams / Knot (Calidris canutus) flock in flight over Dee Estuary with the North Wales coast in background. UK, December 2010.
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Alan Williams / Knot (Calidris canutus) and Black tailed godwit (Limosa limosa) flock in flight over marshes, Dee Estuary, UK, November
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Alan Williams / Red-breasted merganser (Mergus serrator) male chasing female, Dee Estuary, Scotland, UK, November
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Alan Williams / Red-breasted merganser (Mergus serrator) female feeding on fish, followed by male, Dee Estuary, Scotland, UK, November
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Alan Williams / Red-breasted merganser (Mergus serrator) male on sea, Dee Estuary, Scotland, UK, January
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Alan Williams / Red-breasted merganser (Mergus serrator) male on sea, Dee Estuary, Scotland, UK, January
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Alan Williams / Red-breasted merganser (Mergus serrator) male on sea, Dee Estuary, Scotland, UK, January
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Alan Williams / Red-breasted merganser (Mergus serrator) male on sea, Dee Estuary, Scotland, UK, January
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Alan Williams / Knot (Calidris canutus) flock in flight at sunset, Dee Estuary, Merseyside, UK, November
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Alan Williams / Knot (Calidris canutus) flock in flight at sunset, Dee Estuary, Merseyside, UK, November
