anas platyrhynchos animal bird drop droplet duck mallard nature river splash swim water wet wild wild duck wing bay beach blue boat colours cutters destination destinations horizontal horizontals light old port reflection ship style summer swimmer swimming covered depth depth indicators distortions lines platform pool pool floor rippling rubberised surface surface swimming pool tiled surface animals Dinner feed feeding fish mammal ng swim ocean oceanarium sea seal swimmi train trainer watter zoo aquatic avian birds ducks feather feathers float ganzo goose pato webbbed feet Adaptation beak bill duckling geese and swans pond water bird waterfowl wildflowl wildlife