flock
colony
pod
Correct!
A group of pelicans is called a flock. Flocks can be seen flying in a "V" pattern or in straight lines. Birds flock together because there is safety in numbers. Many birds also stay together because they are social animals.
brown pelican
This large dark bird is unmistakable soaring in the air along the coast. With about a seven-foot wingspan, it flies gracefully above the water, then dives into the sea with a clumsy splash, searching for its next meal. But the brown pelican is even more noticeable perched on a pier: its long bill is typically as big as (if not bigger than) its head. The most recognizable feature of this bird is the bulging pouch that hangs under its bill.