Greenwing Events for Kids Ducks Unlimited Greenwing events are special events for children. Below is a list of upcoming Greenwing events across the country. Click here to learn more about Greenwing memberships. Upcoming Greenwing Events TN Valley Greenwing Day Saturday, June 12, 2021 - Waverly, Tennessee KC's Discover Nature Family Outdoor Day Event Saturday, September 25, 2021 - Lee's Summit, Missouri