Alaska species accounts, part 2, v4221
Page 17
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
Holmes, R. 1959 Eralia FuscioIIis 5. 20 June Barrow, Alaska "courtship" display was seen. According to F.A.T., the note used here was the same as the one used during the aerial display. After the display was performed twice, the male appeared to sneak off using the "move-run" technique, when he moved about 10 feet away from the female before taking flight. The male was also seen to give this same display for a Semipalmated Sandpiper, which was followed by a chase which ended at the territory boundary. So apparently this may be an aggressive behavior as well as (?) a courtship display. Later, two males were displaying at the same time. Conflict between these two was not observed, even though the second bird was seen inside the first one's territory (near the eastern edge). During the flight songs, the male throat could be seen moving air and out, but it was not bulged out like the Pectoral. There was no defensive action taken when Red Phalaropes or Loons flew over the area. The wing display where one wing is raised toward an obstacle was noted when Golden