Sterna hirundo (common tern) | CLASSIFICATION

Kingdom Animalia (animals)
- Eumetazoa (metazoans)
  - Bilateria (bilaterally symmetrical animals)
    - Deuterostomia (deuterostomes)
      - Phylum Chordata (chordates)
        
        Craniata (craniates)
        
        Subphylum Vertebrata (vertebrates)
        
        Superclass Gnathostomata (jawed vertebrates)
        
        Euteleostomi (bony vertebrates)
        
        Class Sarcopterygii (lobe-finned fishes and terrestrial vertebrates)
        
        Tetrapoda (tetrapods)
        
        Amniota (amniotes)
        
        Class Reptilia (turtles, snakes, lizards, and relatives)
        
        Class Aves (birds)
        
        Subclass Neognathae (neognath birds)
        
        Infraclass Neoaves (modern birds)
        
        Order Charadriiformes (shorebirds and relatives)
        
        Family Laridae (gulls, terns, and skimmers)
        
        Subfamily Sterninae (terns and noddys)
        
        Genus Sterna (typical terns)
        
        Species Sterna hirundo (common tern)
        
        Subspecies Sterna hirundo hirundo
        
        Subspecies Sterna hirundo longipennis
        
        Subspecies Sterna hirundo minussensis
        
        Subspecies Sterna hirundo tibetana