The extensive road system, including eighteen miles of dike roads, offers excellent access and great vantage points for wildlife viewing. More than 260 species of birds plus many species of mammals, reptiles, and amphibians can be seen on the property. The best time to view wildlife is at dawn and dusk. Wildlife is generally less active and there is less traffic and other disturbance at these times. Spring offers the largest diversity of species and fall is best for sheer abundance for wildlife.
Wildlife is less viable in summer after the migrants have left and only the summer residents remain.
However, this is the time of year to observe wildlife with their young. The seasons and bag limits can be found in the Wisconsin hunting and trapping regulations. There are only two exceptions. Part of Crex is closed to sharp-tailed grouse hunting. A map of the area open to sharp-tailed hunting is posted outside of the Visitor Center.