#genus_Steatornis__Steatornis  type and sole genus of the family Steatornithidae
  supertype:  bird_genus  a genus of birds
  member of:  family_Steatornithidae
  member:  oilbird__guacharo__Steatornis_caripensis  nocturnal fruit-eating bird of South America that has fatty young yielding an oil that is used instead of butter

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