background birds color colored colors colour coloured colours cygnus-olor harmonious harmony leisure light paddling pair reflection reflections reflective ripples rippling river riverside river’s-edge serene serenity swans swimming synchronised synchronized tranquil tranquilly water water-birds waterways webbed-feet white white-swans animal bird depth duck ducks feathers lake nature plumage pond shadow stones stream sunlight surface swim tidal wave waves wild wings bushes city clouds eagle Remains sea smoke sun avian beak bill feather ocean tern shore flamingo Marieke Kuijpers Ouwehands Dierenpark wildlife zoo aquatic black black-necked-stork carnivore coloring colouring contrast contrasting ephippiorhynchus-asiaticus glossy Jabiru large-birds long-legged long-necked near-threatened slender stork waders wading-bird water-bird wetlands appearance aquatic bird Australian circles circular common fauna fowl movements moving native-fauna omnivore omnivorous peaceful placid swamp-hen textures waterbirds waterfowl wild-life blue gray horizon sand sky summer Tan