Fall Migration
Track migration as hummingbirds travel to their wintering grounds.
Russ Thompson
Track the Migration
Join us as we track the migration of hummingbirds traveling to their wintering grounds. Citizen scientists across North America are observing seasonal changes and reporting hummingbird sightings.
- Weekly migration news: August 22 - October 31
- Real-time maps
- Field notes from observers
- Photo galleries and video clips
- Articles and slideshows
- Journal pages
About Fall Hummingbird Migration
Fueled by the nectar, hummingbirds double their weight as they prepare to fly hundreds or even thousands of miles. Males leave first, as early as mid-July. Females follow, and then the young who migrate for the first time all alone.
