Remsen, J.V. 1973 Common Tern Sterna hirundo July 21 Whitewater Rivemouth, Salton Sea, Riverside Co., Calif: 1 ad - contrasting dark back and white rump, dusty primaries. ~ first. identified by Guy McCaslie Sep. 14 North end Salton Sea, Riverside Co.: 2 Sep. 15 South end Salton Sea, Tempeuil Sep. 15 San Diego offshore boat trip: 50 -> W, mostly imms. Sep. 27 Moss Landing, Monterey Co., Calif: 1 ad. ident. by black shoulder mark. However at the Arcata sewage ponds on Sept. 29 a Forster's Tern (by eye patch) was also seen to have this black shoulder mark; this mark was seen by Kimball Garrett, Ron LeValley, Steve Bailey, Val DaCosta and others. The Common Tern at Moss Landing did have a Common Tern shaped eye patch. Oct. 6 Monterey area, Monterey Co., Calif: 1 ad. Pt. Pinos prominent dark shoulder patches, dark primaries. Oct. 20 North end Salton Sea: 10