beach bird birds feather feathers fly flying gull nature sea seagull blue cold ice lake seasons snow tree white winter America coast Galapagos great Heron ocean soth standing wildlife ancient chimney house house roof landscape old sky trees windows beak eyes killdeer legs outdoors plover sand Anser anser geese goose group looking natural shallow DOF background 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-swans 2 birds chase fight flight hammerkop hawk hunt scare Sparrow Hawk