The species occurs in the eastern Pacific from the islands in Baja California to the Galápagos Islands and the Isla de la Plata in Ecuador and Malpelo in Colombia.

Nazca boobies are the largest of the booby birds in the Galapagos Islands.

The species has a yellow iris, orange and pinkish beak, black facial skin in the form of a mask, and grey feet. Adults present white plumage with black tips of the wings and tail. The female is bigger and heavier than the male. Their weight: 3 to 5 pounds (1.2 to 2.3 kg); height: 30 to 35 inches (75 to 89 cm) and wingspan: 5 to 6 ft (1.5 to 1.8 m).

Nazca boobies catch fish by plunge-diving into the waters from heights of up to 30 metres. They usually forage in coastal waters.

The Nazca booby nests near cliffs on bare ground with little to no vegetation. The male chooses and defends a territory, then enters into courtship to attract females. Like many seabirds, the species has a long lifespan combined with low annual reproduction and long periods of development in the young. Clutch size is one or two eggs, due to the low hatching success, however when 2 eggs are laid and they both hatch, it is common for only one of the chicks to survive.

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