Ross Hoddinott / Mallard duck (Anas platyrhynchos) drake swimming through reflection of house, Bude canal, Cornwall, UK. April 2015.
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Ben Hall / Goldeneye duck (Bucephala clangula) drake performing courtship display, Lancashire, UK February
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Charlie Summers / Ruddy duck (Oxyura jamaicensis) drake making bubbles in courtship behaviour, Arapaho National Wildlife Refuge pond, North Park, Colorado.
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Robin Chittenden / Mallard (Anas platyrhynchos), two drakes fighting. Norfolk, England, UK. March.
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Marie Read / Red-breasted Mergansers (Mergus serrator) male in foreground performing courtship display to female in background (left), Aurora, New York, USA, April.
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Nick Upton / Common teal (Anas crecca) drake dabbling in flooded marshland, RSPB Greylake reserve, Somerset Levels, UK, January.
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Nick Upton / Shelduck (Tadorna tadorna) drake walking on a frozen pond, Gloucestershire, UK, February.
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Nick Upton / Gadwall (Anas strepera) drake swimming past reeds in flooded marsh, RSPB Greylake, Somerset, UK, January.
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David Pattyn / Tufted duck (Aythya fuligula) male drake , Valkenhorst Nature reserve, Valkenswaard, The Netherlands, May
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David Pattyn / European pochard (Aythya ferina) male / drake, Valkenhorst Nature Reserve, Valkenswaard, The Netherlands, April
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Roger Powell / Garganey (Anas querqueda) male swimming. Ferienregion National Park, Bayerischer Wald, Bavaria, Germany. April.
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Roger Powell / Small flock of Northern Shovellers (Anas clypeata) in flight during pursuit courtship. Druridge Pools, Druridge Bay, Northumberland, England, UK. March.
