[EBB Sightings] Pigeon Guillemot

Yesterday I had the opportunity to go sailing in the afternoon from Pt. 
Richmond.  I saw 2 Pigeon Guillemots about 1/4 mile east of the 
Southampton Shoal light.  I believe the birds were in San Francisco Co., 
but one of them flew off to the east and may have crossed into Alameda 
Co.. Unfortunately we did not have GPS on board and this location is 
fairly close to a triple county junction (SF, Alameda, Contra Costa). I am 
wondering if it is at all unusual to see this species this far into the 
Bay?
Also seen were two Common Loons, 5 Brown Pelicans together, Caspian and 
Forster's Terns, Double-crested Cormorant, Western and Ring-belled Gulls, 
and some Aechmophorus grebes.

John H. Harris
Professor of Biology
Mills College
5000 MacArthur Blvd.
Oakland, CA 94613
(510) 430-2027
johnh at mills.edu