movement vs migration

movement and migration both are nouns.

Word	Noun	Adjective	Verb	Adverb
movement	Yes	No	No	No
migration	Yes	No	No	No

As nouns, migration is a hyponym of movement; that is, migration is a word with a more specific, narrower meaning than movement:

movement (noun)	migration (noun)
a change of position that does not entail a change of location	the movement of persons from one country or locality to another
the act of changing the location of something	the periodic passage of groups of animals (especially birds or fishes) from one region to another for feeding or breeding
a series of actions advancing a principle or tending toward a particular end	(chemistry) the nonrandom movement of an atom or radical from one place to another within a molecule
the act of changing location from one place to another	a group of people migrating together (especially in some given time period)
the driving and regulating parts of a mechanism (as of a watch or clock)
a general tendency to change (as of opinion)
a major self-contained part of a symphony or sonata
a natural event that involves a change in the position or location of something
a group of people with a common ideology who try together to achieve certain general goals
an optical illusion of motion produced by viewing a rapid succession of still pictures of a moving object
a euphemism for defecation