Brett Willard, program manager for Merryspring Nature Center will be at the Coastal Children's Museum, 75 Mechanic St. Rockland, teaching children about the different tracks Maine animals leave in the snow. Geared for ages 4 and up. Bring boots and hats as part of workshop is outside. Workshop included in admission price. FMI or to sign up: info@coastalchildrensmuseum.org, 594-0300.