Large seabird of inshore waters, often seen from beaches but not usually up close. Typically flies and soars fairly high up. Feeds by spectacular, steep-angle plunge-dives. Breeds very locally in colonies on offshore islands, nesting on the ground. Adult has a streaky brown-and-white neck and blue feet. Immature has a dusky brownish head and neck and grayish feet. All plumages told from Brown Booby by white at the base and tip of the tail.