Many endangered birds have also been found here:

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[The salt marshes in the 102] bay now represent most of California’s remaining salt marshes and support many endangered species and provide key ecosystem services, such as filtering pollutants and sediments in rivers. [103] The most famous is that the Gulf is a key link in the Pacific migration route. Millions of coastal birds come to the Gulf Shoal as a refuge every year, which is the most important component of the Alaskan south migration route.


[104] California terns, California slab gulls, snowblons and black crown student database egrets. [105] Images of otters basking in the sun on rocks. The otter basking on the rocks of Richmond's inner harbor also has a significant diversity of salmon. For man-made and natural reasons, the number of hard-headed fish in California has fallen sharply; in the Gulf region, California’s natural and man-made hard-headed fish stocks under the insurmountable barrier from the Russian River to the Aptos Creek, and San Francisco、The drains in San Pablo and Suisen Bay are listed as threatened species by federal endangered species.


[106] The silver salmon population on the central coast of California is the most endangered of many troubled salmon populations in the area. The west coast of the United States includes people living in tributaries of San Francisco Bay. [107] The Chinook salmon on the coast of California was historically native to the Guadalupe River in San Francisco Bay. Today, Chinook salmon are still migrating among the Guadalupe River, Coyote Creek, Napa River and walnut Creek.