Red-tailed tropicbird . The red-tailed tropicbird is a seabird native to the tropical Indian and Pacific Oceans. One of three closely related species of tropicbird, it has four subspecies. Superficially resembling a tern in appearance, it has almost all-white plumage with a black mask and a red bill. The sexes have similar plumage. Adults have red tail streamers that are about twice their body length, which gives rise to its common name. Nesting takes place in loose colonies on oceanic islands, the nest itself a scrape found on a cliff face, in a crevice, or a sandy beach. A single egg is laid, being incubated by both sexes for about six weeks. The red-tailed tropicbird eats fish, mainly flying fish, and squid, catching them by plunge-diving into the ocean. This bird is considered to be a least-concern species according to the IUCN, though it is adversely affected by human contact. Rats and feral cats prey on eggs and young at nesting sites.