The blue-footed booby (Sula nebouxii) is one of the most iconic and recognizable birds of the Galápagos Islands, named for its distinctive bright blue webbed feet, which play a central role in elaborate courtship displays where males lift their feet high in a stiff, strutting dance to attract females—the bluer the feet, the more attractive and healthy the mate is perceived to be. These seabirds have brown and white streaked plumage, a long pointed bill, and are skilled plunge-divers, folding their wings back and diving from significant heights into the ocean at high speed to catch fish like sardines and anchovies. They typically nest in loose colonies on open ground, laying two to three eggs directly on bare soil or rock, and practice a form of siblicide during food shortages, where the strongest chick may outcompete or kill weaker siblings to ensure its own survival. Blue-footed boobies are found along the Pacific coast from California to Peru, but the Galápagos Islands host one of the largest and most famous breeding populations, making them a major draw for wildlife tourism. While not currently endangered, their populations are sensitive to El Niño events and fluctuations in fish stocks, which can significantly impact breeding success in certain years.