What happens when that caterpillar you are taking care of, one day turns into a butterfly? Learn how Eastern Monarch Butterfly Farm raises beautiful, happy, healthy butterflies! All events at Iroquois National Wildlife Refuge are free and open to all! For this event, please meet at the INWR Visitor Center. Arrive a little early and take a gander at the stunning nature display and learn about the different habitats within the Wildlife Refuge, and all the animals that occupy it.