Couple of Blue-footed boobies ("Sula nebouxii") during a mating ritual, Lobos Island, Galápagos Islands, Ecuador. The blue-footed booby is a long-winged seabird with a wingspan of up to abbr=on. The species is abbr=on high and is easily recognizable by its distinctive bright blue feet, which is a sexually selected trait, as the males display their feet in an elaborate mating ritual by lifting their feet up and down while strutting before the female. Although the blue-footed boobies are usually associated to the Galápagos Islands (where half of all breedinmg pairs nest), they can be found from the Gulf of California down along the western coasts of Central and South America down to Peru.