Spring Bird Migration at Horicon Marsh  Several knowledgeable birders will accompany us on a trip to visit the largest fresh water cattail marsh in the United States. Enjoy seeking out some of the more than 280 species of birds Horicon Marsh has to offer. Bring your bird book and binoculars—let’s go birding! This outing includes a trip into the marsh aboard a pontoon boat, lunch at the Audubon Inn, time in the DNR Explorium museum and a naturalist led walking tour. Meet the bus at Holy Wisdom Monastery for a 7:30 am departure. We plan to return to the monastery around 5:30 pm. Leaders ...