American Black Tern was only seen at the Salton Sea and one this single bird was noted.
California - November 2009
Terns
American Black Tern
Forsters Tern
The Salton Sea held the monopoly on Forsters Terns with these photos taken during a single morning at the end of Gast Road, where the above American Black Tern was also present. As can be seen the outermost primary, P10, is shorter than P9.