JP Myers 1980 Calidris melanotos NARL, Barrow, Alaska 16 June (EMTY) There were also numerous non-residents, evident because of frequent PP cheers and because of PP without well developed breast sacs. PP numbers very low. In 2 hrs of tracking one PP (80/6/16-1) I knew it contained only one P, far less than I had expected. [illegible] See Tracking record for details. In fact the first PP picked to track was a transient and McLaury chose me as a possibly P?? 1123 watching a chase - P tried to land around (2,5) and was chased first by 2 then by 1 P. Wound up 800+ m southeast of grid and 150 m up in air before I lost her in the sun. minute 98 of 80/6/16-1: P flew up ~50 m in air and glided back down. A new display?? Minute 113 began chasing a P that landed, doing so w! considered aggression. Flew up some 40 m in air but did not leave air space over territory, even though the P did immediately 17 June Went to Grid 2 @ 0445 to see if melanotos actually any better than. It was not. In 7 hrs field time on the Grid I saw 3 PP, possibly only 1. In infrequent intervals resident PP chased transient PP through territory. GRID 3, NARL, Barrow, Alaska McLaury found a 2 egg melanoto clutch today on Grid 3. Much P activity and apparently the territorial array has tightened up considerably. P's more than 1 P. He tracked the P for 3 hrs and then returned to camp. We went out, banded her, and then mounted a 24 hr watch to determine with whom she copulated. Unfortunately between 1400 and 1600 she laid her third egg.