Very small, going around on kelp
Poor, distant and low-light documentary photo of this rare bird to San Diego County, CA. Found by Paul Lehman on 10-31-12.
641 Coronado Ave
Likely Sandwich (Cabot's) x Elegant Tern hybrid. Digiscoped with Android phone through spotting scope.
I originally ID'd this as a Blackburnian Warbler, which this hybrid combination resembles, but examination of the photos shows some key features not present in Blackburnian.