migrator vs migrant

migrator and migrant both are nouns.

Word	Noun	Adjective	Verb	Adverb
migrator	Yes	No	No	No
migrant	Yes	Yes	No	No

As nouns, migrator and migrant are synonyms defined as:

migrator and migrant: traveler who moves from one region or country to another

migrator (noun)	migrant (noun)
an animal (especially birds and fish) that travels between different habitats at particular times of the year	traveler who moves from one region or country to another
traveler who moves from one region or country to another

migrator (adjective)	migrant (adjective)
	habitually moving from place to place especially in search of seasonal work