Greek partridge vs genus Alectoris

Greek partridge and genus Alectoris both are nouns.

Word	Noun	Adjective	Verb	Adverb
Greek partridge	Yes	No	No	No
genus Alectoris	Yes	No	No	No

Greek partridge (noun)	genus Alectoris (noun)
of mountainous areas of southern Europe	a genus of Perdicidae