Chinstrap penguin (Pygoscelis antarctica) molting at Baily Head on Deception Island, Antarctica, Southern Ocean, Polar Regions

Gentoo penguin (Pygoscelis papua) chicks covered with mud and guano on Cuverville Island, Antarctica, Southern Ocean, Polar Regions

Whooper swan (Cygnus cygnus) preening feathers. UK

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

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 southern rockhopper penguin (Eudyptes chrysocome chrysocome) at breeding and molting colony, Falkland Islands, South America

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

Ostrich, Ngorongoro, Tanzania, East Africa

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

Caucasian mother rinsing hair of daughter in bathtub

Rubber duck floating in bubble bath

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

Flamingo (Phoenicopteridae) grooming its feathers, in captivity

A pair of mute swans in Lake Kawaguchi disrupt the reflection of Mt. Fuji, Japan, Lake Kawakguchi, Japan

African Darter cleaning feathers, Marievale Bird Sanctuary, South Africa

A preening Shag (Phalacrocorax aristotelis) off the coast of Northumberland, UK.