Black swan (cygnus atratus) feeding at water surface, slimbridge, uk

horizontals waterbird birds animals horizontal wildlife slimbridge predator black lakes waterbirds feeding aquatic social wetland vertebrate carnivore cygnus atratus swans migrating monogamy cygnus surface vertebrates water migrate wetland hunters monogamous carnivorous nature atratus wetlands migrates predation zoology migratory atratus habitat cygnus atratus predators ponds cygnus water anatidae anseriformes hunter fauna animal