Sharon Wander, president of the NJ Butterfly Club, will speak at the Skylands Sierra Club on Tues. Feb 13, at 7 pm, at the Unitarian Fellowship, 1 W. Nelson St., Newton. She will talk about the nearly one-fifth of NJ butterflies that are classified as Endangered, Threatened, or of Special Concern, and what we can do to help them. She will also answer questions and give advice about how to make your yard a good place for butterflies. All are welcome to attend this free event. Refreshments will be available. For more information, visit www.skylandsgroup.org, www.facebook.com/SkylandsNJSC, or at www.meetup.com/Sierra-Club-Skylands-Group.