A group of pelicans is called a pod. When pelicans are in groups for breeding, they are in colonies and generally come together on islands.
There are more than six different species of pelicans, but all of them carry one distinctive trait. All pelicans have a throat pouch and this trait is usually how people identify these birds. The pouches help them catch fish for the most part, but different species have different uses for the pouches. Pelicans can swim, and tend to go out in groups to catch fish. Some pelicans species dive onto their prey while others scoop up their prey into their throat pouch.