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Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
J Myers
1980
Calidris melanotos
(land 3, NARL, Barrow, Alaska)
25 June
cont'd
I remained w/ this 9 until 1400 when Sordahl took over. During this swim she
was hooded over 5 times in 283 minutes, once / 57 minutes. She had very few
interaction with the 8, including only one RG and no squawk. Her 8 on foot
began repeated display over a 2nd female. He largely ignored Redhead. So the
trend continues.
Returned at 1730 to take over from Sordahl. A remarkable evening
on the 8 ignored her throughout the 8 hours I tracked. He had a 2nd
female + was hooting over these incessantly. I noted because Redhead
should be about to copulate for 3rd egg. Why does the 8 ignore her so
completely? It is 100% consistent with the behavior of 8 toward other
99 we have tracked in this stage of laying PECULIATE! Equally remarkable is
the fact that throughout the swim the 9 stayed within a 350m radius
circle, straying over fewer than 0.25 ha.
NOTE - Sordahl saw a Pomarine take GW:6W's nest today at 1600.
26 June
1330 began tracking GW:6W today, as she was being displayed to by 8, Redheads
8. She is in Mac area where this 8 was so active last night and probably was
that 9. Briefly, her history: she began by laying on territory of 8 (map of 21 Jun).
Briann + Tex tracked her during this period. She was detected making nut cups on 21 June + laid
her first egg by 1630 that afternoon. Clutch completed by the morning of 25 Jun.
But by that date 8 (again map of 21 Jun) had expanded his territory in that
direction far enough to include her nest. Then 1600 hrs the pomarine struck.
Late that night 8 began displaying incessantly to a 9 in her area, and I suspect
it was her, especially given that he is displaying to her this a.m. Note: 25 Jun
1415 - GW:6W is crossing a boundary into 8's territory. 8, ad 8 are
fighting at the boundary
NOTE - whole melanotos scene exceedingly quiet today