The Heermann's Gull is a gull that lives on the west coast of the United States and Mexico. It has a population of about 150,000 pairs, and 90% of these nest on the island of Isla Rasa off Baja California.
Heermann's Gulls eat a variety of food items. They are also known to steal food from other birds; Brown Pelicans are frequent victims.
The conservation status of the Heermann's Gull is Near Threatened (as of November 2014), but the good news is that the population trend is increasing. Weather patterns like El Niño strongly influence breeding success of this species.
From IUCN Red List: The Heermann's Gull is listed as Near Threatened
on the IUCN Red List and was last assessed in 2012 by BirdLife International. This species is considered Near Threatened as it has a highly restricted breeding range, with 90% of the world population breeding on a single small island. Populations fluctuate widely in response to climatic events, although these fluctuations are less than one order of magnitude. It is likely to be at high risk from catastrophic events or local anthropogenic changes, and should be carefully monitored.
Heermann's Gull is found on the Pacific coast of North America. This striking species was named after the American explorer and naturalist Adolphus Lewis Heermann. Adult Heermann's Gulls have a gray body; ... more