JPIIugens 1980 Calidris melanotos GRID 3, NARL, Barrow, Alaska 20 June (on the 14th and was banded that afternoon. Her nest is within 20 m of the boundary between T8q and 6. During the evening melanotos display activity commenced until 0200. The &'s are still moving on - I saw one flock of 7PP settle down on the Woods by T8, and they were scattered throughout the lowlands out there. If there is a melanotos that spotted this year it is three lowlands east of (2103 and N of T8. Beaucoup de melanotos. The & copulated with T8q at 0317. This is the area where territory she nests. She did, however, venture outside of his area, travelling as far as 250m from her nest (3c, egg 3 laid 19 June between 1800 and 1047). In doing so she traversed the territories of T8q and T8o, both of whom entered into intense group display with her. She did not butt-up. See tracking account. What struck me as remarkable was the fact that most of the time the T8q left her to feed alone. They knew she was there. They displayed to others consciously. But she was left in peace most of the time even though she was preparing her 4th egg and thus had to become receptive at some time. (4) When she did the sex was over in less than 1 minute (see tracking account). OFF THE WALL HYPOTHESIS — Once a & is receptive it behaves as an & to leave her be. If he harasses her too much she'll probably leave his territory, and she won't be on his territory at the moment she's ready to copulate. Perhaps they resemble Tryngite in this regard. Forgive the anthropomorphism, but... it seems that a Tryngite & good is to allow the & to remain undisturbed with him. If she doesn't get distrupted then he is obviously a good &. Melanotos could be doing the same thing: Undisturbed &'s are on areas with &'s capable of excluding others very effectively, i.e. good &'s. So the & remains if undisturbed. This might be called the Kinetic model of Calidrisine society.... 21 June Began tracking at 0000 hrs on Grid 3, remained through 0600. Not so fortunate as last few days. The 1st & picked up I spotted from 200 m away - she