The swallowtail knife winged hummingbird, a precious bird of the hummingbird family, is distributed in South America. Hummingbirds are named after the buzzing sound they make when flapping their wings, resembling that of bees. Hummingbirds are the only bird species that can fly both backwards and forwards. Due to its small and exquisite size, the feathers are extremely colorful and dazzling, deeply loved by people. In the 19th century, women in Europe and America often used hummingbird feathers as headwear, and merchants purchased hummingbird skins, posing a great threat to the survival of hummingbirds. In modern society, with the deforestation and development of farming, the habitats that hummingbirds rely on for survival are gradually being destroyed, and some hummingbirds are also facing the danger of extinction.