Adult Subantarctic Skua (Catharacta antarctica lonnbergi) cleaning itself in glacier run off at Stromness Bay, South Georgia, Polar Regions

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

Major Mitchell Cockatoo perched on branch, Queensland, Australia

Ostrich, Ngorongoro, Tanzania, East Africa

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

Eider duck (Somateria mollissima), male. Male appearing to call someone. Actual behaviour is scratching and cleaning mouth with claw on webbed foot, while drifting with winter raft , Scotland, United Kingdom

Sandhill crane (Grus canadensis), bends its neck behind its feathers, Homosassa Springs Wildlife State Park, Florida, United States of America, North America

Grey Heron (Ardea cinerea) perched in a tree. Herons occasionaly roost or perch in trees. This one was perched while having a preen and stayed there for atleast 3 hours.. Argyll, Scotland

Eider Drake (Somateria mollissima) cleaning itself in water. Eiders raft together in winter, the males all squabbling together, preening, diving and flapping. Eiders come from all over to raft together, Scotland

Grey Heron (Ardea cinerea) perched in a tree stretching legs and wings. Herons occasionaly roost or perch in trees. This one was perched while having a preen and stayed there for atleast 3 hours.. Argyll, Scotland

Grey Heron (Ardea cinerea) perched in a tree looking to side portrait shot. Herons occasionaly roost or perch in trees. This one was perched while having a preen and stayed there for atleast 3 hours.. Argyll, Scotland

Grey Heron (Ardea cinerea) perched in a tree. Herons occasionaly roost or perch in trees. This one was perched while having a preen and stayed there for atleast 3 hours.. Argyll, Scotland

Grey Heron (Ardea cinerea) perched in a tree looking stretching wings and neck looking down. Herons occasionaly roost or perch in trees. This one was perched while having a preen and stayed there for atleast 3 hours.. Argyll, Scotland

Grey Heron (Ardea cinerea) perched in a tree looking to side, neck stretched. Herons occasionaly roost or perch in trees. This one was perched while having a preen and stayed there for atleast 3 hours.. Argyll, Scotland

Roseate Spoonbill (Ajaia ajaja), immature preening, Dinero, Lake Corpus Christi, South Texas, USA

Greater Flamingo (Phoenicopterus ruber roseus) cleaning its plumage

Flamingo (Phoenicopteridae) grooming its feathers, in captivity

Chilean Flamingo (Phoenicopterus chilensis), portrait

Chilean Flamingo (Phoenicopterus chilensis), preening