Western Gull

Description:

The Western Gull, Larus occidentalis, is a large white-headed gull that lives on the western coast of North America. It was previously considered conspecific, the same species, with the Yellow-footed Gull (Larus livens) of the Gulf of California. The Western Gull ranges from British Columbia, Canada to Baja California, Mexico,[1] and because of its convenient colonies on the coast of California it is well studied. Despite being a well-known bird species on the West Coast of the US, it is of some slight conservation concern given its restricted range (for a gull).

Habitat:

San Mateo Coastline

Notes:

This gull appears to be carrying nesting material.