J.P. Myers 1980 Calidris molaris GRID 3 NARL Barrow, Alaska 22 June cant'd 0120 - Q working on nut cup, the second one during current tracking session and the 4th all told. She begins by entering a clump of Carex aquatilis + compressing substrata with her breast; her tail slides up in the air - often it is all you can see of her. Then she sits up a bit, for 10-15 sec + looks around. Then she goes back to pushing with breast. The B sometimes hoots over her as she does this. After working by pushing down, she starts toggling at to the Carex blades around her nut, working them over her nut with her bill, and also picking up materials from around the nut - especially Thamnolia and other lichens, tossing them over her shoulder. 0145 B has been fairly beside her, then approaches + goes into HIG-D. She stands still, he goes behind her, rolling grous display. She is facing away from him, he bounces her, she erects 5-10cm swelled cleaved region As he stops RGE and begins to squawk, raises one wing, then both wings. His neck goes out + he starts to wave his head up + down as he squawks continuously. The squawk has elements of the aggressive jabber call to it. The head waving carries the head from the position shown above to one at a lower angle: and he does this very rapidly, once or so per second (but irregularly). He is also treadling in place. Then this time she runs away + he breaks off, flying abruptly to a nearby mound. Sometimes, especially when she isn't upright, he breaks off, stands erect for a second