peregrine vs nomadic

peregrine is a noun but nomadic is not a noun.

Word	Noun	Adjective	Verb	Adverb
peregrine	Yes	Yes	No	No
nomadic	No	Yes	No	No

As adjectives, peregrine and nomadic are synonyms defined as:

Other synonyms of peregrine include mobile, roving, wandering.

peregrine (noun)	nomadic (noun)
a widely distributed falcon formerly used in falconry

peregrine (adjective)	nomadic (adjective)
migratory	migratory