Summary ²

The California Least Tern, Sterna antillarum browni, is a subspecies of Least Tern that breeds primarily in bays of the Pacific Ocean within a very limited range of Southern California, in San Francisco Bay and in and extreme northern Mexico. This migratory bird is a U.S. federally listed endangered subspecies. The total population of the subspecies amounted to 582 breeding pairs in 1974, when census work on this bird began. While numbers have gradually increased with...

Sources and Credits

1. (c) pothman, some rights reserved (CC BY-NC), http://farm5.static.flickr.com/4051/5162067596_b9b9e59a86.jpg
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Sternula_antillarum_browni

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