A warm sunny fall day with a pretty stiff northerly wind for most of the day. Billie and I visited the Princeton willows (north and south), Pescadero Beach overlook, the Pescadero ranger station, and Skylawn between 7:45 and 4:45. We had no new species at Skylawn.Our most unexpected look of the day was 40 Common Ravens circling on thermals just west of the Hwy 92 summit around 4:00. I think that's the largest group of ravens I've ever seen.