rock squirrel vs spermophile

rock squirrel and spermophile both are nouns.

Word	Noun	Adjective	Verb	Adverb
rock squirrel	Yes	No	No	No
spermophile	Yes	No	No	No

As nouns, spermophile is a hypernym of rock squirrel; that is, spermophile is a word with a broader meaning than rock squirrel:

rock squirrel: large grey ground squirrel of rocky areas of the southwestern United States
spermophile: any of various terrestrial burrowing rodents of Old and New Worlds; often destroy crops

Other hypernyms of rock squirrel include gopher, ground squirrel.

rock squirrel (noun)	spermophile (noun)
large grey ground squirrel of rocky areas of the southwestern United States	any of various terrestrial burrowing rodents of Old and New Worlds; often destroy crops