It is called a Chattering
The collective nouns for choughs are: a chattering of choughs a clattering of choughs a cluttering of choughs
CHOUGHS
A Crow-Man or Crow-Woman Depending On Sex (Male OR Female)
A group of Dolphins are called a Pod
A group of dolphins is called a pod. If that is your question.
some times . i think they use to do that . i think there all kinds of jails.
a group of Blackbirds is called a murder
A group of shrews is called N.O.W.
A group of hens is called a brood.
A group of martens is called a richness
A group of grouses is called a covey
A group of grapes is called a bunch of grapes.