Alaska field notes, v4438
Page 253
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Transcription
J Myers 1980 Calidris melanotos GRID 3, NARE, Barrow Attack 24 June COUNT 1552 reached grid 3. Reduced 9 was notably met; the 8 was there feeding 5b/one egg. At 1558 I found Redhead at virtually the SAME SPOT to the centimeter where I left in this am @ 0520. 1620 - 8 ignored by 8 so far; quite a contrast from earlier day (see my note, traveling accent by Myers + Sordahl). Interpolation - During early days of courtship, before the 8 has taken the final + ultimate step in commitment - i.e. egg laying - the 8 counts her almost exclusively. Then at some pt she decides this is the spot for her. It may have been that the aggression noted on the night of morning of 23 June was the turning point. After then she became indifferent toward the 8 + also be "known" she can't care because of the growing clutches. I have seen repeated small instances of 8->8 aggression since that evening. The 8 then begins to ignore her, except for brief periods which sometimes involve copulation. Weather this afternoon - temp = 38°F, 0 clouds, and Snaph from NE Summary - Redhead did not visit in nest during the 3hrs I tracked her. She was looked to only twice. No intensive group display. The 8 remain nearly but his color is cooling. Very little LIGC either. 25 June 0230 fog rolls in after a beautifully clear evening. Is this the return of normal Barrow weather? We have had a significant spectacularly warm mid/late June wind moderate from NE @ 10mph. By 0800 fog cleared. Redhead was not on her nest at 0800 but she now has 2 eggs but they are cool 0923 found Redhead 1140 - Redhead feeding by (27B) current S and Y:YM's nut (a local 8 maleant). Y:YM flew off nut and chased Redhead away. Chased Redhead twice once while 40m from nut. Y:YM then stood fiercely near Redhead with her tail depressed + back feathers raised, much like winter aggressive tail-down posture of territorial bird in winter.