• Mississippi National River and Recreation Area


    National River & Recreation Area Minnesota

Waterbird Surveys

American white pelicans rest on a log partially sunken in the Mississippi River

American white pelicans

NPS Photo

The Mississippi Flyway is the longest migration corridor in the Western Hemisphere. From the Mackenzie River Valley in the Northwest Territories to the Mississippi Delta in Louisiana, the Mississippi Flyway provides over 3,000 miles of quality habitat uninterrupted by mountains making this route an ideal passage for millions of migrating birds, including 40% of the continent's waterfowl.

For over 20 years the aerial survey - which runs through the fall migration - has monitored waterfowl/ waterbird abundance, distribution and peak migration times in the upper Mississippi River (map). This data helps biologists and officials make decisions about hunting regulations and habitat management.

Fall Flights

Since 2009 weekly aerial waterbird counts have been conducted from late September through early December from Pool 2 (Twin Cities) through Pool 4 (Lake Pepin) of the Mississippi River.

Fall Flights data and information (Upper Mississippi River National Wildlife and Fish Refuge)

Waterbird Survey Fact Sheet (U.S. Fish & Wildlife Service)

Fall flight surveys have been a cooperative effort between numerous partners:

  • U.S. Fish and Wildlife Service
  • National Park Service
  • Mississippi River Fund
  • Minnesota Department of Natural Resources
  • Wisconsin Department of Natural Resources
  • Audubon
  • Prairie Island Indian Community
Ground Counts
The National Park Service monitors waterbirds each fall at Red Rock Lake, St. Paul, MN (map). Ground counts help resource managers understand how waterbirds use vulnerable habitats in the Twin Cities.

Fall Ground Counts (National Park Service, Mississippi National River and Recreation Area)

Did You Know?