#family_Gavidae__Gavidae  loon family
  supertype:  bird_family  a family of warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings
  member of:  order_Gaviiformes
  member:  genus_Gavia__Gavia  type genus of the Gavidae: loons
     member:  loon.gaviiform_seabird__diver  large somewhat primitive fish-eating diving bird of the northern hemisphere having webbed feet placed far back; related to the grebes

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