A group of Dolphins are called a Pod
A group of dolphins is called a pod. If that is your question.
A group of hens is called a brood.
a group of Blackbirds is called a murder
A group of martens is called a "richness."
A group of grouse is called a "pack".
A group of shrews is called a "muddle."
A group of grapes is called a bunch of grapes.
A group of Spiders is called a cluster or clutter. Spiders belong to the group of animals called arachnids.
A group of swine is called a sounder or drift
The -OH group is called the hydroxyl group
AnswerA group of nightingales is called a watch.