What do butterflies do at night? Butterflies don’t sleep, they rest, a behavior known as roosting. You are watching Heliconious butterflies roosting at sundown, they will perch on the underside of a leaves and roost in large groups at night, seeming as if they are huddling for warmth! Since butterflies are most vulnerable when they are at rest and not as alert, they need to blend into their surroundings. This is one reason why some species of butterflies have duller patters on the underside of t

Life Cycle of a Butterfly Lesson for Kids