Black-necked swan (cygnus melanocoryphus) close-up of head, slimbridge, uk

horizontals waterbird birds animals horizontal wildlife slimbridge black necked melanocoryphus predator black lakes waterbirds necked aquatic social vertebrate carnivore british swans migrating developed country england monogamy cygnus necks europe vertebrates britain water migrate wetland hunters monogamous carnivorous nature united kingdom close wetlands migrates predation english zoology migratory predators developed countries ponds cygnus european anatidae anseriformes hunter fauna animal