I am forwarding this report from Art Robinson of Oakland.
Your directions were right on the mark for Virgin Creek Beach, where
Friday morning, March 26, in the hour after high tide on the rocks
just north of the beach were a flock of 60 or so Black Turnstones (as
reported earlier) and the ROCK SANDPIPER. As the tide dropped a bit,
the birds worked their way northwards from one rock grouping to another.
The Rock Sandpiper had some rufous on his back, the beginnings of a
transition to breeding plumage? Just south of Laguna Point was another
large flock of Black Turnstones, this time accompanied by a dozen or
so Surfbirds. The rocks north of Mill Creek Drive had only Black
Turnstones, although a sprinkling of Black Oystercatchers were at all
the spots. -- Art