North and South Carolina are part of "The Butterfly Highway." In fact, there is a movement to create Monarch Butterfly Rest Stops to help them along their paths. Part of the reason they need the help is that Monarchs will only lay eggs on a certain plant - Milkweed. There used to be fields and fields of Milkweed, but no longer.
Well, butterflies have lots of predators such as wasps and birds. Karen examines her plants to find baby 'pillars.'