#feather__plume__plumage  the light horny waterproof structure forming the external covering of birds
  supertype:  #body_covering  #animal_material
  part:  #vane  #quill.rib
  substance:  #keratin  #melanin
  part of:  #bird
  subtype:  #down_feather__down  soft fine feathers
     subtype:  #duck_down  down of the duck
        subtype:  #eiderdown  down of the eider duck
     subtype:  #goose_down__goosedown  down of the goose
     subtype:  #swan's_down  down of the swan
     subtype:  #plumule  down feather of young birds; persists in some adult birds
  subtype:  #aftershaft  a supplementary feather (usually small) on the underside of the base of the shaft of some feathers in some birds
  subtype:  #contour_feather__contourfeather  feathers covering the body of an adult bird and determining its shape
  subtype:  #bastard_wing__bastardwing__alula__spurious_wing  tuft of small stiff feathers on the first digit of a bird's wing
  subtype:  #marabou  downy feathers of marabou storks used for trimming garments
  subtype:  #hackle  long slender feather on the necks of e.g. turkeys and pheasants
     subtype:  #saddle_hackle__saddle_feather  a long narrow feather on the back (saddle) of a domestic fowl
  subtype:  #flight_feather__pinion__quill__quill_feather__quillfeather  any of the larger wing or tail feathers of a bird
     subtype:  #primary_feather__primaryfeather__primary__primaryquill  one of the main flight feathers projecting along the outer edge of a bird's wing
     subtype:  #tail_feather  feather growing from the tail (uropygium) of a bird
        subtype:  #sickle_feather  one of the long curved tail feathers of a rooster
  subtype:  #scapular  a feather covering the shoulder of a bird

No statement uses or specializes #feather; click here to add one.