Lyrurus tetrix vs heathfowl

Lyrurus tetrix and heathfowl both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lyrurus tetrix	Yes	No	No	No
heathfowl	Yes	No	No	No

As nouns, Lyrurus tetrix and heathfowl are synonyms defined as:

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

Other synonyms of Lyrurus tetrix include European black grouse.

Lyrurus tetrix (noun)	heathfowl (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