Grey heron perched on a tree branch against a clear blue sky, United Kingdom, Europe

heron bird wildlife nature tree branch willow tree sky blue sky feathers beak legs long legs standing perched pose majestic wind sway green leaves foliage animal avian wild outdoors habitat environment natural fauna ardea herodias waterbird wader coastal bird wading bird ornithology predator hunt fish fishing pond lake river water wetland freshwater marshes swamps meadows grasslands open space