Fregetta (white-bellied and black-bellied storm petrels) | 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 Procellariiformes (tube-nosed seabirds)
        
        Family Hydrobatidae (storm petrels)
        
        Subfamily Oceanitinae (southern hemisphere storm petrels)
        
        Genus Fregetta (white-bellied and black-bellied storm petrels)
        
        Species Fregetta grallaria (white-bellied storm petrel)
        
        Species Fregetta tropica (black-bellied storm petrel)