A group of butterflies is officially called a kaleidoscope. Isn’t that fun?! Sometimes they are referred to as a swarm. A cluster of butterflies is called a roost.
parliament“Did you know that a group of owls is called a ‘parliament’?” “Did you know that a group of jellyfish is called a ‘smack’?” “Did you know that a group of Indonesian mountain weasels is called a ‘bubble gum’?”