Linked from
The 116 pages that link to Bird migration, each with the reason it gives.
GodwitNarrower topic: Godwits' journeys are instances of this broader seasonal movement.
IcteridRelated: Many icterids migrate seasonally, while others remain in one region year-round.
LarusRelated: Migration connects breeding and wintering populations of multiple Larus species.
LocustellidaeRelated: Migration shapes the seasonal presence of several locustellid species.
PatagonaRelated: Some giant hummingbird populations move seasonally along the Andes.
Scops owlRelated: Some scops owls, including the Eurasian scops owl, migrate seasonally.
TringaRelated: Many Tringa species undertake long seasonal journeys between wetlands.
Vertical draftRelated: Soaring migrants use thermals to travel long distances with little flapping.