bird dark darkness eye iris night owl predator snowy owl yellow 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 baby breeding chick crane feeding green nest offspring spring stork Anser anserini beak big big-bird confrontational daring domesticated farmyard-animal feathers feathery fowl gaggle gander geese goose grass greenery guards orange orange-beak tail textures variations varieties variety visibility vocal waddle watch-animal waterfowl weeds wings accomplished-swimmer aquatic Australian blue-penguin burrow carnivores diver eudyptula-minor eudyptula-minor-novaehollandiae fairy-penguin flightless flippers limestone-shelter little-penguin penguin penguins plumage poolside pursuit-diver shelter sheltered smallest-penguins standing swimmers waiting wet wildlife zoo flow gull leg mono one seagull shallow celebration Easter egg food painted season young Australia black black-swan cygnus-atratus emblem emblematic fauna green-water gregarious iconic large life-pairs pond protected protected-species red-beaked red-eyed social swan symbol symbolic water-bird Western-Australian-State-emblem bushes city clouds eagle Remains sea smoke sun