Southern giant petrel (Macronectes giganteus) cleaning itself on the water, South Georgia, Southern Ocean, Polar Regions

Whooper swan (Cygnus cygnus) preening feathers. UK

Adult azure kingfisher (Ceyx azureus), perched in Porosus Creek, Frederick Harbor, Kimberley, Western Australia, Australia, Pacific

Adult black-browed albatross (Thalassarche melanophrys), close up of tail at nesting site on New Island, Falklands, South America

Adult brown pelican (Pelecanus occidentalis), on a small islet near Isla Salsipuedes, Baja California, Mexico, North America

Major Mitchell Cockatoo perched on branch, Queensland, Australia

Ostrich, Ngorongoro, Tanzania, East Africa

White-fronted terns (Sterna Striata) in North Island, New Zealand

Blue and yellow macaws (Ara ararauna) sitting in a tree, pair grooming, Matto Grosso do Sul, Brazil, South America

Greater flamingo (Phoenicopterus ruber roseus), captive, animal portrait, plumage care, Germany, Europe

Flamingo (Phoenicopteridae) grooming its feathers, in captivity