CHILD S 1951 26 July 27 Point Barrow, Alaska in the afternoon and gil + 9 checked them after the rain. The traps at the south end of L W were picked up; catch = 3 jwv. longspuro and 1 jwv. Red-backed Sandpiper. I collected a juvenile Golden Plover near 88. The eiders did not appear to be moving along Elen Lagoon today with anywhere near the numbers seen yesterday. July 28 Gil + 9 ran the traps in the morning. The old square not was deserted. The rest of the morning was spent skinning. July 29 Gil, Lee Talbott (a Col. student working in the mess hall) and I went out to check the traps on L W in the afternoon. There were a few Black-bellied Plovers with the golden A. jaoviale phalerope was collected. In the traps I got a jwv. Red-backed Sandpiper and there was a 9 Dicrastonyx in one of Thompson's live traps. At Birnick I got a Black-bellied Plover and a jwv. Ruddy Turnstone and found a Red-throated Loon. July 30 I went out to Birnick with the archaeologists and counted the ducks passing over the duck camp. The totals and a map of the area are to be found on the following pages. Almost all were King Eiders, a total of 11,460 birds being estimated passing the area in 9 hours and 48 minutes. The presence of a flock was almost invariably announced by gun fire from an Eskimo camp at Grant Point over which, apparently, all the ducks pass. The problem of estimation of numbers was a big one and the system I tried to follow