JPLayers 1976 Calidris ruficollis Nuwuk, Pt. Barrow, Alaska 13 June P & Connors found the C.r. at Pt. Barrow two days ago, and as of yesterday it was displaying. I went out this a.m. to record its song, with some success except that I inadvertently taped over the best portion (noises). See tape log. The main display note, analogous to a C. alpina frog-hover call, is given in a gliding flight alternating with hovers, as the C.r. tools about its territory. It is a throaty rrr rrr (but not gravelly) with a quality reminiscent of a semipalmated Plover. The flight path looks something like this: average: ~86 sec but w/ some variability # 2 on tape 76-6-2 flutter glide and call Also recorded 2 other notes - one aggressive given while chasing C. bairdi - it sounds similar to a C. pusilla aggressive note. The other was a diving call, given twice during the morning after a bout of flutter-gliding, as the bird dove back to the ground with its wings in a deep V. GRID 3, Barrow, Alaska 28 June a ruficollis on the grid during censusing - small, obviously smaller than pusilla with which it is moving about. Feeding an emergent insect, picking + juddi at vegetation. Call note a squeak, a bit richer than mauri but still a squeak.