P. De Benedicts 1965 Calcaris haplochirus 26 June Barnes, Alaska - Watched 38's & 29s on Pitelka's plot - one male covered 8 acres in flight songs but seemed to be attached to the area. Both females were loosely associated with a male but showed interest only in feeding while I watched them. In the evening Hamilton and I saw a female carrying grass and found a nearly completed cup in the Bavel area behind the lobs. Saw 23's side by side on 2 separate occasions. 27 June Saw several feeding pairs and 29s together 3 occasions in the Bavel area and flushed at close range a female sitting on a nest with 4 eggs; the nest was well lined with feathers and down in the tallest grass on one of the undisturbed ridges in an area heavily traversed by foxesels, etc. Pairs seen in the afternoon were feeding and the only nests seen had been found earlier by Hamilton. 28 June Found a nest with 5 eggs about 100 yds. S of it above nest located under a tuft of grass on a very disturbed clump of mud! No change in the above nest. Birds don't look very territorial but saw one male silently and successfully displacing a 244 male by hopping towards the latter. 29 June The nest we found June 26 is now complete but empty. These birds are very variable in breeding conditions as it is still possible to find groups of 2-3's together and 2-3's together with much trouble. They were not very noisy today and no large groups were seen. No change in any clump.