"आगन्तुक च‍रा" का संशोधनहरू बिचको अन्तर

[[File:BrantaLeucopsisMigration.jpg|thumb|300px|A flock of [[Barnacle goose|barnacle geese]] during autumn migration]]

[[File:Migrationroutes.svg|thumb|300px|Examples of long distance bird migration routes.]]