I just heard from the La Crosse Audubon group that there are four trumpeter swans in Perrot S.P, and 16 in the Whitewater Wildlife management area. ( Open water on the north side of 74, before you hit the pavement coming from Weaver.) Waterfowl are certainly creatures of habit, but, they aren’t pinned down! So keep your eyes open!
Thank you for the heads up, Pat Schmidt!

Images below and in header are found at the Trumpeter Swan society site.

  Trumpeter

The Trumpeter is a huge bird, with a wingspread up to 10 feet! But notice the very black bill which makes an almost perfect triangle and stretches right to the eye.

The society offers a detailed identification guide free if you CLICK HERE.

  Tundra