Blue-footed booby feet (Sula nebouxii), Punta Pitt, San Cristobal (Chatham) Island, Galapagos, UNESCO World Heritage Site, Ecuador, South America

Adult black guillemot (Cepphus grylle) on Sumburgh Head, Mainland Island, Shetland Isles, Scotland, United Kingdom, Europe

King penguin's feet, St. Andrews Bay, South Georgia, South Atlantic

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

The feet of a Whistling duck at Martin Mere bird reserve near Ormskirk, Lancashire, England, United Kingdom, Europe

Brown booby (Sula leucogaster), detail of feet, St. Peter and St. Paul's rocks, Brazil, South America

Brown booby's feet (Sula leucogaster), St. Peter and St. Paul's rocks, Brazil, South America

Gentoo Penguin (Pygoscelis papua) close-up of feet in the Falkland Islands, south Atlantic Ocean.

Gentoo Penguin (Pygoscelis papua) close-up of feet on ice in Antarctica.

Duck's feet

Hawaii, United States Of America, Red-Footed Booby (Sula Sula) Pitches Forward In Flight With Tail Feathers And Feet Flared For Braking