Remsen, J.V. 1974 Annals Hummingbird Calypte anna Jan. 4 373 Gravat Dr., Oakland, Alameda Co, Calif : 1 Jan. 18 Tilden Park, Contra Costa Co, Calif : 1 pursuing Robin high in the air for 100+ yards - Robin definitely acted harassed. Apr. 2 301 Camino Pablo, Orinda, Contra Costa Co, Calif : 1 fledgling giving a very high-pitched metallic zeeep in a bush about 15' from feeder - Bird motionless and very difficult to locate. No adult apparent. Call given about once every 30 seconds. for about a minute Apr. 6 301 Camino Pablo : same call heard every day since Apr. 2 in vicinity of first observation. Also an obvious juvenile with very short bill was seen feeding at hummingbird feeder today and yesterday