While standing on the top of the dam, I looked out on the lake and spotted a large fishing party. Two species working together to fill their bellies. Pelicans use a technique called cooperative fishing. They go out in groups and drive the fish into shallow water. Then the pelicans practice synchronized fishing where they get in circles (like the one on the far right here) and they dip their bills in the water together and scoop up fish. The cormorants join the pelicans to take advantage of the gathered up fish. Cormorants dive to catch their fish and this drives the fish up to the surface where the pelicans can scoop them up. Win win for all.
American White Pelican (Pelecanus erythrorhynchos)
Double-crested Cormorant (Phalacrocorax auritus)