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Fieldtrip to Bolsa Chica Ecological Reserve, Huntington Beach, Orange Co., CA, April 26, 2013

-	-	We were fortunate, once again this year, to have CSUF Professor Emeritus Dr. Joel Weintraub guest leading our visit to Bolsa Chica.
-	Common false advertising: You will see farther with binoculars.	-
-	Demonstration of how binocular optics relates to pupil size.	How to check for binocular problems.
-	-	We saw multiple California sea hares (Aplysia californica) and one predatory scorcerer's cephalaspidean (Navanax inermis)
The ribbed mussel, Geukensia demissa, is native to our East Coast but has been introduced to California, Texas, Mexico, and Venezuela.	-	-
The American coot is a rail (Rallidae) not a duck.	-	-
-	-	atypical grebes
-	black skimmers (on far left) and gulls (western and California)	-
We observed a ruddy turnstone turning various "stones" and clumps of mud.	-	-
Semipalmated plovers were common.	great egret	-
great blue heron	-	-
Another introduced mussel, Mytilus galloprovincialis, is common in bays and estuaries but is also found mixed in with California mussels on exposed rocky intertidal shores.	lesser scaups	-
-	snowy egrets	Altogether we saw 42 bird species.

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