Fulica, Part 1, v1314
Page 371
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
illion 1950 Euloca americana '80 Jan 26 Gray Lodge Refuge, Butte Co., Calif. Initially concerned with territory behavior. The frontal shields seem to be somewhat swollen on every bird exhibiting any real degree of territoriality. 1 instance of paired display, no tangle tho - one later comes from one pair came in cackling. Two birds ganged up on a third as it invaded in close to the center of their territory. - These coots are generally shy and readily fly when closely approached. Many jump into the air from the ground to fly away. After they drop limply into the cat-tails, at other times flying to water - but seldom in a climbing flight, usually a level or dropping flight after initial take off. Both 2a & notes were heard, as well as some cackling. Birds seem paired and on territory along the waterways, but mostly not paired on the larger open pools. All birds defending territory that could be at all closely examined possessed the swollen shield. Jan 27 same locality - After watching yesterday afternoon and this morning it seems apparent that the coots at Gray Lodge are in the same stage of territoriality that the birds in the Bay area are. Jan 28 Univ. Calif. Campus, Alameda Co., Calif. Of the foods offered today, lettuce