Alaska species accounts, v4430
Page 337
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Maclean 1967 C. bairdi: 2. 13 June near Micro Mer. also saw a clade of 3 birds here. 14 June Hedra goose display over ooth creek and saw clade. 1 of displaying rights over Broaderville in the evening. 15 June Were very active in the drum area. Saw 2 nest cup displays, on either side of phone line, ca. 100 m. apart. May have been same or different pair. First time - ♂ dropped into cup when ♀ was near. He remained, scraping and dipping, ca. 30 sec, then ♀ got in for ca. 10-15 sec. Afterwards simply resumed feeding. Soon after - ♂ and ♀ were feeding, with ♂ intermittently calling and wing flashing. Worked apart in feeding; when ca. 12 m. apart, ♂ dropped into cup and called while scraping. ♀, obviously attracted, came over and replaced ♂ in cup. Then ♀ exited and, without any additional apparent precursor, attempted copulation occurred next to cup. Copulation did not appear to be successful. Birds then separated and resumed feeding. Other pairs were active in Drum area - at least 6 pairs. I made no attempt to census, since Karl should have this information.