EnvThes
type: ConceptScheme

bird migration
type: Concept
in scheme: EnvThes
alternative label: birds migration
alternative label: birds migrating
alternative label: birds migrated
alternative label: birds migrate
scope note: MS Academic Keywords
broader: biological process
creator: https://orcid.org/0000-0003-2195-3997

biological process
type: Concept
narrower: bird migration