[1] : The Collaborative International Dictionary of English v.0.48

heath \heath\ h=eth, n. oe. heth waste land, the plant
   heath, as. h=aeeth; akin to d.  g. heide, icel.
   heiethr waste land, dan. hede, sw. hed, goth. haithorni
   field, l. bucetum a cow pasture; cf. w. coed a wood, skr.
   ksh=etra field. root20.
   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
see also:
erica vulgaris calluna vulgaris heather ling erica heather 
heath cock heath grouse heath grass triodia triodia decumbens 
heath game tetrao tetrix black game black grouse heath poult 
heath fowl moor fowl heath cock blackcock heath hen 
gray hen heath hen heath pea lathyrus macrorhizus heath throstle 

[2] : The Collaborative International Dictionary of English v.0.48

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
see also:
lyrurus tetrix tetrao tetrix heath grouse black game black grouse heath poult 
heath fowl moor fowl heath 

Grouse >> G Words
Grouse, definition of term: Grouse
grouse_pag1.html

Heath >> H Words
Heath, definition of term: Heath
heath_pag1.html

Heath Cock >> H Words
Heath Cock, definition of term: Heath Cock
heath+cock_pag1.html

Ruffed Grouse >> R Words
Ruffed Grouse, definition of term: Ruffed Grouse
ruffed+grouse_pag1.html