A Seabird Comeback: How Restoration Efforts Can Combat Climate Change | KQED

There was also direct human predation on an industrial scale, with the harvest of seabird eggs for food, their guano as fertilizer and the birds themselves to render for oil, along with seals, sea lions and whales, or as the unwanted bycatch of commercial fishing boats.On the Farallon Islands near San Francisco, home to the largest single seabird nesting colony in the United States, the murre population dropped from 400,000 to 60,000 in just a few decades during the gold rush, as people harvested up to half a million eggs per year.

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