Animal Trivia: Groups: A group of unicorns is called a ----------. A group of kangaroos is called a mob. A group of whales is called a pod. A group of geese is called a gaggle. A group of owls is called a parliament. A group of ravens is an unkindness. A group of crows is a murder. A group of bears is called a sleuth. Twelve or more cows is called a flink.