Heron Heron Small grebe Small grebe Coot Mallard Tufted duck Canada geese rat Blackbird Small grebe Wood pigeon Marsh harrier Marsh harrier Cormorant Small grebe Herons Canada geese in flight Avocets and gulls Great tit Great tit and chaffinch Great tit in flight Great tit in flight Reed bunting Wigeon in flight Wigeon in flight Gull in flight Robin Heronry Heronry Heronry Heronry Burton Wetlands heronry Herons Incoming herons Heronry Heron in flight Heron in flight Blue tits fighting Blue tits fighting Blue tits fighting Blue tits fighting Blue tits fighting Blue tits fighting Blue tits fighting