JPMayer 1980 Calidris maritima GRID 3, NARL Barrow Alaska 27 June (continuation) Tracking sheet, minute 18). The fact that this is a boundary became clear moment later when O3 flew up from 10 m away and had a border fight with Limp, directly over the area where GW:6M had been feeding and from where Limp forced her. Again, it looked like an incident of herding behavior, or if Limp was keeping GW:6M within the confines of his territory, or possibly teaching her ???! 1728 GW:6M again approaching boundary. "If that was herding before, then the O3 (Limp) ought to chase her soon" <-- vibration from tape 1729 2 kids from pomarine jaeger 1730 O-Limp chased 9 back to center of territory. He flew at her from 10 m away, dived, circled around + she returned in a flight of 90 m toward Limp's territory's center. INCREDIBLE. Limp is keeping her away from the edge of his boundary. As GW:6M flew, O3 flew again and AGAIN Limp and O3 have a boundary fight over the very spot from where Limp chased GW:6M. This HERDING of GW:6M by Limp has now happened on two separate borders, one with O3 and one with O9. On each occasion (twice) the Limp 1st chased GW:6M back + then returned to fight with the neighbour Shortly after this happened O5-Limp- left GW:6M and went to another 9 at the opposite end of his territory. GW:6M hung around for 20 more minutes but then she split, flying 200 m off the ridge to the vicinity of her old nest. In quick succession 2 separate O8's display) to her, O6, who controlled the area around her nest as she was laying, and O7, who usurped that area. I was not able to keep up with her and lost her in a border dispute between O6 and O7. 28 June 1300 rechecked grid and began looking for GW:6M. Could not find him. Did find