Genus Phaethon is a group of marine birds that includes three species: red-billed tropicbird, white-tailed tropicbird, and red-tailed tropicbird. There are several synonyms for the term "Genus Phaethon" that are often used by scientists and researchers in the field of ornithology. These include "tropicbird genus," "tropical petrel genus," and "Phaethontidae." The name "Phaethon" is derived from Greek mythology, where Phaeton was the son of Helios, the god of the sun. These birds are known for their striking plumage, long tails, and the ability to soar above the ocean for hours on end. They are often used as an indicator species for the health of marine ecosystems.