Great Migrations
Snow goose migrations can turn the sky white
Massive flocks of snow geese can gather over wetlands and farm fields during migration, creating a wall of birds, sound, and movement.
Video: National Geographic Animaux. Embedded from the original YouTube source.
A large snow goose flock does not look like a normal group of birds. It can fill the horizon, lift from a field as one enormous wave, and create a roar of wings and calls.
The visual effect comes from migration concentrating birds into productive stopover areas. Those temporary bottlenecks are what make the event feel like an invasion.
This category also opens valuable travel and birding opportunities because many migration hotspots are predictable enough for seasonal viewing trips.
What to know
- Large concentrations often form at wetlands and agricultural feeding areas.
- Migration timing varies with weather and geography.
- The birds may remain concentrated briefly before continuing along the flyway.
Good questions
What people usually want to know
Why do snow geese gather in such huge flocks?
Migration concentrates birds at suitable feeding and resting areas, creating massive temporary gatherings.
Where do snow geese migrate?
They breed in Arctic and sub-Arctic regions and migrate south to wintering areas in the United States and Mexico.