NAM Verbeek 1966 Pluvialis dominica (2) 18 June. On our way back from Gas line Ridge a female flew up some 30 m ahead of us. She had a nest with three eggs, handsomely colored and marked, on top of a mound, the surface of which consisted of broken clumps of moss (Nest #1). 20 June. Copulation took place at about 10:00 between Beach Bridge and Imikpink Lake. 21 June. Observed one copulation about ½ mile S. of Pitelka's census plot and an other one along Elson lagoon, at ± 06:00 and 07:45 respectively. Copulation in this species seems a rather cut and dry occupation, hardly worthwhile to fly to all the way from Hawaii for. In any case, the male hops on and keep flapping his wings. After the transfer of sperm he flies off and lands some 25-30 m further on where he begins to feed. The female remains where she is and does not appear to do anything for a while. In one case she ruffled her feathers about 2 minutes after copulation took place. Since in all these cases I have observed copulation at some distance, I may have missed subtle behavioral aspects and any sounds. In one case, this morning, when the male landed after copulation, I saw him chase, on foot, a Baird Sandpiper. Golden Plovers are still moving in it seems. Several times today at Elson lagoon I saw birds chase each other. Also at this three birds would feed near each other, while then sooner or later would lead to an other chase. Steve observed copulation. Formed a new nest #3 W. of Elson lagoon about 250 m inland. The nest had 4 eggs, one of which was quite differently marked