Natural History Wanderings

The New York Times reports

To persuade some migrating Caspian terns to stop short of the Columbia River, scientists planted plastic decoys and patio speakers in San Francisco Bay.

The goal of those doppelgängers was to lure terns to breed on the islands, and, in doing so, prevent endangered salmon and trout living hundreds of miles to the north from vanishing.

A Silicon Valley Disruption for Birds That Gorge on Endangered Fish – The New York Times