Bi-Weekly Waterfowl Survey
Ohio Department of Natural Resources, Division of Wildlife
In the agency’s words
Species Group Dabblers & Divers Species All Year 2025 Zone All Location All | 2025: Early September 3008, Mid September 3239, Early October 19627, Early November 44405, Mid November 90197 | 5 Year Avg 2021-2025 Avg. Value: 6,703 6,234 19,665 118,346 136,137Ohio Department of Natural Resources, Division of Wildlife, November 2025. Read it at the source
Ducks, geese and swans counted from the air over the Lake Erie marshes of northwestern Ohio (state wildlife areas, Ottawa NWR and Sandusky Bay) plus inland wildlife areas in northern Ohio, by species; a fall and winter migration count
- How often
- The survey is flown weekly during September and bi-weekly from October through January.
- Season
- September to January
- Long term
- 5 Year Avg 2021-2025 (ducks, dabblers and divers): 6,703 early September, 6,234 mid September, 19,665 early October, 118,346 early November, 136,137 mid November
- Counted at
- Sandusky Bay Marshes, Pickerel Creek Wildlife Area, Toussaint Marsh Area, Magee Marsh Wildlife Area, Metzger Marsh Wildlife Area, Maumee Bay, Ottawa National Wildlife Refuge, Cedar Point National Wildlife Refuge, and 11 more
The agency’s survey page The report this count is from Read October 8, 2026
