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Aerial Surveys

Aerial shot of waterfowl on Swan Lake

The Mississippi Flyway updates the mallard migration map every week after rankings are provided by states every Tuesday.

Aerial surveys for the year 2011 and on are accessible from this page.

Surveys for 2009 and 2010 are listed on the Older Surveys page.

For pre-2009 surveys, please go to

Map showing waterfowl survey locations.​​​