Apodiformes

order of birds Apodiformes (Apodiformes) is an order comprising closely related families of organisms. It contains 4 families with 440 known species. This includes the family groups Aegothelidae, Apodidae, Hemiprocnidae, and Trochilidae. Among its members, 45 species are currently classified as threatened (Critically Endangered, Endangered, or Vulnerable). It belongs to Birds (Aves).