American White Pelicans prefer company to a solitary existence. They usually stay together in large colonies while nesting, on feeding trips, and during migration. When feeding they like to come together in groups such as seen in this photograph. In this way they can be cooperative by encircling their prey and chasing the fish to one another. These three were photographed in a protected wildlife refuge, part of the San Francisco Bay, at Charleston Slough in Palo Alto, California.