J.P. Myers 1980 Calidris melanotos NARL, Barrow, Alaska 2 July (contin.) the aggressive jabber note: Further + further into the SQUAWK as he gets closer + begins to flutter the jabber takes less + less time. Throughout the where his mouth is open + it is strongly red in color inside. There is a strong Arch to his neck (see Photo by Myers); he is on his toes, stamping. The wing-ups sometimes begin as tentative wing-outs, then single wing up, then double wing up. When this happens he stops moving advantage Squawker forward. She stands erect + puffs out her neck feathers slightly, plum du tatie a fine tentative step into her back. Paradoxically, after all this work, the P frequently breaks-off. Just as he steps up, he stops the squawk, stands erect, preens, and flies off. Sometimes the Q breaks off by flying. Sometimes he will stand erect after this, + rarely he will flash a wing up--see W/Lafferty's entry into Phenology account for melanotos. When she flies he flies to, rather very far. The break-off can come before he starts to step up. If there is no break-off, copulation ensues. The P remains on the Q for up to a minute, fluttering all the while. The Q's receptivity appears to be indicated by her posture--a Q standing erect with neck feathers slightly puffed out is more likely to go farther in the display than one who's neck is withdrawn and who keeps running away. Sondahl: "odd that the Q's receptive posture in melanotos is just the opposite of what it is in other shorebirds, where a Q goes horizontal if not slightly bent-up just prior to copulation". Q->P aggression Surprising observations of Q's aggression toward P. See tracking note by Myers on 23 June. A second set of observations of same were obtained by Myers tracking GW+6M + directed toward transient P. Finally, W/Lafferty saw W-RM on 1 July claw both transient P and transient Q away from nest. So, Sondahl also saw