Gulls just want to have fun
Seagulls are always on the lookout for any type of gathering — especially if it involves fellow flock-mates and, of course, food. Gulls are particularly good at scavenging, but are also known to interrupt your picnic by swooping in and snatching your sandwich.
The Heermann's gull is a different species than the more common Western gull. In summer, flocks of these distinctive birds migrate north along the Pacific Coast from their nesting grounds in western Mexico. This movement coincides with the northward migration of the brown pelican, from which this aggressive gull snatches fish from the pelican's pouch.