sprig tail vs grouse

sprig tail and grouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
sprig tail	Yes	No	No	No
grouse	Yes	No	Yes	No

As nouns, grouse is a hypernym of sprig tail; that is, grouse is a word with a broader meaning than sprig tail:

sprig tail: large grouse of prairies and open forests of western North America
grouse: popular game bird having a plump body and feathered legs and feet

sprig tail (noun)	grouse (noun)
large grouse of prairies and open forests of western North America	popular game bird having a plump body and feathered legs and feet
	flesh of any of various grouse of the family Tetraonidae; usually roasted; flesh too dry to broil

sprig tail (verb)	grouse (verb)
	complain
	hunt grouse