Last Friday morning, I joined the Olli Bird Safari at Caswell State Park, South Austin Road, Ripon, California. The bird safari was led by David Lee. The state park is on a winding bend of the Stanislaus River in the middle of the Central Valley. It’s a rare example of an oak mature riparian forest in California. I took these seven photos mostly of the oaks here and of the the birders looking at diverse bird species in those valley oaks.