Saturday, April 1, from 1-3 p.m., at Eastman Nature Center, in Elm Creek Park Reserve, Dayton. Search for what doesn't belong along an un-natural trail. Create a camouflaged critter and meet one of nature's tricksters. Cost is $5 and there is a 20 percent discount for groups of four or more. This program is for ages 4+ and children 17 years and younger must be accompanied by a registered adult.