tetrao tetrix

Heath \Heath\ (h[=e]th), n. [OE. heth waste land, the plant
   heath, AS. h[=ae][eth]; akin to D. & G. heide, Icel.
   hei[eth]r waste land, Dan. hede, Sw. hed, Goth. hai[thorn]i
   field, L. bucetum a cow pasture; cf. W. coed a wood, Skr.
   ksh[=e]tra field. [root]20.]
   1. (Bot.)
      (a) A low shrub ({Erica vulgaris} or {Calluna vulgaris}),
          with minute evergreen leaves, and handsome clusters of
          pink flowers. It is used in Great Britain for brooms,
          thatch, beds for the poor, and for heating ovens. It
          is also called {heather}, and {ling}.
      (b) Also, any species of the genus {Erica}, of which
          several are European, and many more are South African,
          some of great beauty. See Illust. of {Heather}.
          [1913 Webster]

   2. A place overgrown with heath; any cheerless tract of
      country overgrown with shrubs or coarse herbage.
      [1913 Webster]

            Their stately growth, though bare,
            Stands on the blasted heath.          --Milton
      [1913 Webster]

   {Heath cock} (Zool.), the blackcock. See {Heath grouse}
      (below).

   {Heath grass} (Bot.), a kind of perennial grass, of the genus
      {Triodia} ({Triodia decumbens}), growing on dry heaths.

   {Heath grouse}, or {Heath game} (Zool.), a European grouse
      ({Tetrao tetrix}), which inhabits heaths; -- called also
      {black game}, {black grouse}, {heath poult}, {heath fowl},
      {moor fowl}. The male is called {heath cock}, and
      {blackcock}; the female, {heath hen}, and {gray hen}.

   {Heath hen}. (Zool.) See {Heath grouse} (above).

   {Heath pea} (Bot.), a species of bitter vetch ({Lathyrus
      macrorhizus}), the tubers of which are eaten, and in
      Scotland are used to flavor whisky.

   {Heath throstle} (Zool.), a European thrush which frequents
      heaths; the ring ouzel.
      [1913 Webster]
    

heathfowl \heathfowl\, heath fowl \heath fowl\n.
   A large Northern European black grouse ({Lyrurus tetrix}
   formerly {Tetrao tetrix}) with a lyre-shaped tail; it is also
   called {heath grouse}, {black game}, {black grouse}, {heath
   poult}, {heath fowl}, and {moor fowl}. See {heath grouse}
   under {heath}, above.

   Syn: European black grouse, {Lyrurus tetrix}.
        [WordNet 1.5]
    

Blackcock \Black"cock`\, n. (Zool.)
   The male of the European black grouse ({Tetrao tetrix},
   Linn.); -- so called by sportsmen. The female is called gray
   hen. See {Heath grouse}.
   [1913 Webster]