#feather__plume__plumage  the light horny waterproof structure forming the external covering of birds
  supertype:  body_covering  animal_material
  subtype:  down_feather  aftershaft  contour_feather  bastard_wing  marabou  hackle  flight_feather  scapular
  substance:  keratin  melanin
  part of:  bird
  part:  vane__web  the flattened weblike part of a feather consisting of a series of barbs on either side of the shaft
     part:  barb  one of the parallel filaments projecting from the main shaft of a feather
  part:  quill.rib__calamus__shaft  the hollow shaft of a feather

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