721 acres of restored savannas, prairies oxbow lakes and floodplain forest on banks of the Pecatonica and Rock Rivers.Raccoon Creek has been restored to its original streambed.
3190 West Rockton Road
Species & Habitat
Signature bird & wildlife: Spring and fall migrations bring large numbers of Sandhill Cranes, White Pelicans and various ducks and geese to the oxbows and marshes. Whooping Cranes have used Nygren Wetlands several times as a migratory stop-off. Bald Eagles are resident. Short-eared owls are sometimes visible from the viewing deck hunting over the wet prairie on winter evenings at dusk. Pileated Woodpeckers are in the bottomland forests along the Pecatonica River. Henslow's Sparrows, Dickcissels and Eastern Bluebirds nest in the prairies. Sandhill Cranes have begun to nest in the marshes.
Site Access Information
Hours of operation: Daylight, except special events.
Site Restrictions: No Pets Allowed
Site Assessment Information