A group of cranes is called a "sedge." These elegant birds are often found in wetlands and are known for their graceful movements and distinctive calls. Sedge can also refer to a gathering of cranes in flight or when they are resting together.
i notice them also i found that they are used to help young hooping craines to not run into the lines .sometimes they use red balls
A group of Dolphins are called a Pod
A group of dolphins is called a pod. If that is your question.
A group of shrews is called N.O.W.
a group of Blackbirds is called a murder
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.
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