Thursday, April 5: Trumpeter Swan Release, 1:30 p.m., Little Sioux Park, 1746 O’Brien Avenue, Correctionville, Iowa. The Iowa DNR will release three Trumpeter Swans at Little Sioux Park with the assistance of Woodbury County Conservation Board. The event includes a 20-minute swan/wetland presentation, a unique opportunity to touch and view the swans up close, and a historic photo opportunity with the kids. As the largest North American waterfowl, these magnificent all-white birds can weigh up to 32 pounds with an 8-foot wingspan. The public is invited and encouraged to attend. The event is held rain or shine. For more information contact 712-258-0838.