Herring Gulls are common along the coast in winter, and are uncommon
winter visitors to the Salton Sea. They are only rarely found
along the Colorado River south of Lake Havasu. Look for them
at Obsidian Butte at the Salton Sea, or more reliably along the
beaches and shoreline of San Diego. This is a four-year
gull, so they will look differently every year until reaching
adulthood during the fourth year.
Herring Gull (2nd winter), Salton Sea