April 23, 10 a.m.-2 p.m., "WBU Earth Day Celebration: Creating a Backyard Habitat," Wild Birds Unlimited, 189 South Route 17, Paramus. Free.

Celebrate Earth Day — April 22 — at Wild Birds Unlimited and learn all about creating a wildlife habitat to benefit both you and the birds and other critters in your yard. Find out how to attract birds, butterflies and other wildlife. Topics will include landscaping suggestions, providing shelter and nesting sites for birds, feeding stations, water sources and anything else you need to certify your yard through the National Wildlife Federation.