Hawaiian name: ‘A
Scientific name: Sula dactylatra

- Life Span: > 20 years
- Wingspan: 152 cm (62 in)
- Breeding Ecology
- Breeds in Main and Northwestern Hawaiian Islands, and throughout tropical regions of Pacific, Atlantic, and Indian Oceans
- 2 eggs/clutch (only 1 chick survives); 1 clutch/year (replacement laying occurs)
- Masked Boobies nest in small numbers at Midway; historical data suggest they were never particularly numerous; generally fewer than five nesting attempts per year
- Boobies lack a brood patch and incubate with their feet.