Alaska species accounts, v4430
Page 487
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Maclean 1969 C. melanotus 5. (25 June) chased by at least 7♂. After ca. 1 minute 3 birds came in and dropped out of sight in the trough where the nest was located. the ♀ went immediately to the nest, and we only saw 2♂. the ♀ may have been helped by 1♂ who acted like her mate. Collected the ♀ (SII ) and the 4 eggs - weights: 8.8, 9.4, 9.7, and 8.0 g. - obviously well along. 26 June A third nest - east of AACS - found by Hawes in the morning. We went out and harvested it in the afternoon. The first time we approached the ♀ left and flew c.a. 150 m. away. From there she was chased by a ♂ even farther. We returned in 15 minutes, and this time she only went about 40 m. that was her mistake: SII the eggs were real whoppers: 14.7, 14.1, 14.7, and 14.9 grams! Many ♂ still around AACS meadows and Beach Ridge, but not much display activity. In the evening we watched a ♀ closely attended and displayed over by a ♂ near Micro-Met. She fed continually for the 20 minutes we watched. My guess is an incomplete clutch. 27 June On footprint lake - many birds - mostly ♂.