Bird Notes: Aviary birds of the San Francisco Bay Region, v4289
Page 466
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Stercorarius parasiticus. A fine adult was taken pretty well offshore. Larus occidentalis } and other immature midden- californicus} tifted gulls were noted quite Commonly, chiefly inshore, over "Lovels' Point". Beck says it is regular every morning Xema sabini. About a dozen seen, mostly at a distance. Would not decoy. One immature one. Looks somewhat like Creagris furetus when at a distance. Sterna hirundo. Fairly common offshore. As many as a dozen at a time. Many were very young birds with brown markings on the back and wings. The adults were beginning to show some white in their black caps. Some may have been Sterna paradisaea — investigate later! They decoyed quite readily. Birds thrown into the air. And when shot at stayed about as a rule for two or three minutes, usually calling. They all seemed to be working south as were the Jaegers and Xema sabini. Larus heermanni. A few, especially along the coast; both adult and immature. Puffinus griseus. Common offshore, mostly working north singly either from a flock or one. Fly close to the boat and quite low over the waters.