A group of snakes is usually called a bed, pit, pit, or nest, but a group of rattlesnakes is known as a rumba or rumba. It’s not entirely clear why it’s called a rumba, but the word comes from a Spanish-Cuban term, rumba, which originally meant “party” or “carousel.” Terms such as “bed” or “rumba” are known as collective nouns when referring to groups of animals.
More collective nouns for groups of animals:
A group of monkeys is often called a tribe or troop, but they can also be called cunning monkeys. Baboon groups may be specifically called a baboon bridle or congress, and chimpanzee groups may be called a chimpanzee harem.
Perhaps appropriately, a group of cockroaches is called a cockroach intrusion. A group of mice is often called a pack, but it can also be called a mischief. Ravens also have particularly negative collective nouns, including raven rudeness, as well as a congress, a conspiracy, a parliament, and a raven murder. Pigeons have a more positive group of names, including a group of pigeons and a pigeon of pigeons.
A group of ants can be called an anthill and a group of bees can be called a bee grain.
Groups of crocodiles or crocodiles are called congregations and groups of Komodo dragons are called banks. Both a group of hippos and a group of rhinos can be called accidents. A group of hippos can also be called a bloat.