Field notes, v1364
Page 131
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Howell, T.R. 1948 KRE Pond, Aquatic Park, Berkeley, Alameda Co., Calif. Aug. 8 — The pond is very much dried up at this date with a heavy layer of scummy green vegetation covering most of the water that is left. On one small open spot there were 2 phalaropes, one Northern and one Wilson (Lebipes lobatus and Steganopus tricolor) and a Bonaparte Gull (Larus philadelphia) in winter plumage. The Wilson Phalarope was pursuing some sort of flying insect which alighted in swarms over the scum and quiet water. The phalarope was very quick and active in its feeding, attempting both to snatch the insects from the surface as well as catch them as they flew off. It seemed to be moderately successful at catching them by both methods. The Northern Phalarope was much less inclined to feed on the insects, and made only an occasional pass at them. Even the Bonaparte gull snapped at a few as it swam about. Four Mallards (none drake-feathered) were present, and numerous Barn Swallows, Forster Terns, Bonaparte Gulls (both summer + winter plumages), Western + California Gulls, 3 Farallon Cormorants, and 9 White Pelicans were seen soaring over at a good height.