fowl vs grouse

fowl and grouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
fowl	Yes	No	Yes	No
grouse	Yes	No	Yes	No

As verbs, grouse is a hyponym of fowl; that is, grouse is a word with a more specific, narrower meaning than fowl:

fowl (noun)	grouse (noun)
a domesticated gallinaceous bird thought to be descended from the red jungle fowl	popular game bird having a plump body and feathered legs and feet
the flesh of a bird or fowl (wild or domestic) used as food	flesh of any of various grouse of the family Tetraonidae; usually roasted; flesh too dry to broil

fowl (verb)	grouse (verb)
hunt fowl in the forest	complain
hunt fowl	hunt grouse