JPMYERS 1976 Calidris melanotos GRID 3, Barrow, Alaska 17 June (cont) by♂ 6/17/76-1. Began with usual heavy groove display, quickly going in to the sulkeve squawking, with ♂ behind ♀, within touching distance of back, and ♂ running in place, neck extended, ♂ head raising and lowering on pivoted neck. Wings are raised high in ♂ and fluttered very rapidly but shallowly. ♀ began all this by looking as if she was going into a nest, to the extent that she crouched, then walked away ~1 m. No sign of wing-flick which I saw 14 June. ♂ came around behind her at this point. Once ♂ mounts the wing-flutter is at a lower angle, equally rapid . He was on top for 2 minutes. Successful copulation, it seemed, w/ closed contact. ♂ flew off and away GRID 2 18 June while tracking ♂ saw several ♂s multiple ♂ chance of ♀♀ - not unusual for the # of times seen so much as the # of ♂s in chase. ♂♂ one of 5 and one of 8. 21 June another copulation observed. 6/21/76-2 ♂ being followed (beam at from 15:55 on copulation at 16:56. ♀ appeared in area at 16:42 or so and was immediately subject to a rapid series of hoots. At 16:54 ♂ landed after final hoot + very alert- meening, ~25 m from ♀. She then approached him, walking fairly directly toward him who feeding. On close approach (≤1m) ♂ began going into a heavy groove display. Settling down in grass (swiftly), rolling call, failed cocked once overhanging behind ♀ the around Waving square squawking portion + leggy fluttering. She at first gave him a tail up - lay off display, but quickly succeeded Mounting lasted only 48 sec, w/ male fluttering wings, bill against head, neck withdrawn, no noise. After a session of alert preening near ♀, ♂ then hacked over her several times - see drooping accent. At min 71 (16:57:06) after several hoots from ♀, ♂ began grooving as ♀ was preening nearby. She approached. He went into a more intense groove but w/o