one legged great blue heron standing on a branch

isolated looking camera people unipedal balance uniped one iamp canal illinois michigan united states animal behavior wild wildlife ardea herodias avian bird watching birding birdwatching boulder branch brown closeup crane egret fauna feather gravel gray grey ornithology plumage plume rock rocky shell single solitary stand standing staring stick stone stork twig upright wings leg thermoregulation great blue heron