migration route vs route

migration route and route both are nouns.

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

As nouns, route is a hypernym of migration route; that is, route is a word with a broader meaning than migration route:

Other hypernyms of migration route include itinerary, path.

migration route (noun)	route (noun)
the geographic route along which birds customarily migrate	an open way (generally public) for travel or transportation
	an established line of travel or access

migration route (verb)	route (verb)
	send via a specific route
	divert in a specified direction
	send documents or materials to appropriate destinations