roving vs peregrine

roving and peregrine both are nouns.

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

As adjectives, roving and peregrine are synonyms defined as:

Other synonyms of roving include mobile, nomadic, wandering.

roving (noun)	peregrine (noun)
travelling about without any clear destination	a widely distributed falcon formerly used in falconry

roving (adjective)	peregrine (adjective)
migratory	migratory