JPMayers 1980 Calidris maritimus GRID 3, NARL, Barrow, AK 22 June (Cont'd) 0335 they both have begun to roost, the $ on top of an HC Polygon, the $ about 2m away on the down wind side. As they roost, both with bills tucked, the $ periodically utters the L16-Call for < few seconds at a time, without outsticking bill. 0540 Throughout this tracking session as well as yesterday of same $ the $ has been devoted to her, nothing for anyone or anything else. He has even passed up opportunity for $-$ chance. During 6 hrs of tracking this evening (@2345 - 0545) he roosted near her 28 times = once every 13 minutes. He remained within 30 m of her for most of evening + much of the terrain even closer, There were 2 mountings, one of which may have been a successful population, the other was not. He gave L16C's in both L16- and L16C/TC positions repeatedly. On 3 occasions culminating reached the squawk stage (including 2 mountings, above). She investigated 2 different nut cups, both distinct from site explored this morning. She remained on her territory throughout the entire session 1400 returned to grid to band a $ muleton, the one meeting at (-2,7) = P37. Banded him 6w:6m. I watched Redhead (see tracking session above) for an hour, taking photos of her and $. Behaviors much as last night + in particular she has no nut yet, as she explored 4 new nut cup locations 23 June 0000 tracking RED HEAD on GRID 3. At 0019 had a very near copulation that ended with $ mounted, squawking and fluttering, but $ flew away. See tracking notes for details. I was so close as this happened that I got a decent recording of the rolling grouse + the squawk on my Sony little tape recorder. This pair is obvious to me. 0041 $ in nut cup. $ approaches, L16C/TC + then RB. This is a repeated pattern, $ in NC + male display beside her. 0130 - general pattern this evening so far seems to be that the $ feeds at the male roost or stands alert, giving L16C on intermittently. $ feeds around $