red salmon vs red salmon

red salmon and red salmon both are nouns.

Word	Noun	Adjective	Verb	Adverb
red salmon	Yes	No	No	No
red salmon	Yes	No	No	No

red salmon (noun)	red salmon (noun)
small salmon with red flesh; found in rivers and tributaries of the northern Pacific and valued as food; adults die after spawning	small salmon with red flesh; found in rivers and tributaries of the northern Pacific and valued as food; adults die after spawning
fatty red flesh of salmon of Pacific coast and rivers	fatty red flesh of salmon of Pacific coast and rivers