The red-tailed tropicbird (Phaethon rubricauda) is a seabird species in the tropicbird family, Phaethontidae. It is a medium-sized tropical seabird with distinctive red tail feathers. Red-tailed tropicbirds are found in tropical and subtropical waters around the world, and they are often seen soaring high above the ocean.
Red-tailed tropicbirds are important predators in the marine ecosystem. They feed on fish, squid, and other small marine animals. Red-tailed tropicbirds are also important for the dispersal of seeds, as they often carry seeds from one island to another in their feathers. Red-tailed tropicbirds have a long history of interaction with humans. They were once hunted for their feathers, which were used to make hats and other clothing items. Today, red-tailed tropicbirds are protected by law in many countries.