Lyrurus tetrix vs European black grouse

Lyrurus tetrix and European black grouse both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lyrurus tetrix	Yes	No	No	No
European black grouse	Yes	No	No	No

As nouns, Lyrurus tetrix and European black grouse are synonyms defined as:

Lyrurus tetrix and European black grouse: large northern European grouse that is black with a lyre-shaped tail

Other synonyms of Lyrurus tetrix include heathfowl.

Lyrurus tetrix (noun)	European black grouse (noun)
large northern European grouse that is black with a lyre-shaped tail	large northern European grouse that is black with a lyre-shaped tail