Several Blue-footed boobies in the Galápagos Islands with bright blue feet stand on volcanic rock facing the wind with the sea in the background on Santa Cruz Island

blue footed boobies bluefooted booby booby galapagos bird galapagos islands sula nebouxii marine seabird sea ocean santa cruz santa cruz island boobies colony shore ecuador island blue foot breeding plumage feather feathers sea bird waves swell surf crashing standing wind coast coastline volcanic shoreline sulidae birds darwin charles darwin conservation south america juvenile bluefooted wings avian aves beak fishing blue footed