P Myers 1973 Calidris melanotos 01 Aug25 17 Km E of Luque, by road, Dept Central Paraguay 8:104m upper spotted flock of 19 medium sized pegs with no white on tail coverts, but white to sides of tail, dark upper breast etc. flying in the wind. Watched them fly for 5 minutes in circles without landing. Wind very strong, at least 20-25mph out of south. Birds whirling in it. They flew from S over the road and away across the field. Several (2 or3) stragglers around too. could easily have been in grass and flown while I was occupied with the main flock. Scoured the field and could not find any down. Drove about 10 Km keeping an eye out for more, but saw none (did see + hear a scrape). Returned to original field at 9:15AM 8:45 and the flock was back (or another) the same size. They were flying, moved over an area ~1/6 of a circle eta with a radius of several hundred meters, Wind is very strong. They finally landed, and disappeared in the grass behind a immediately behind a slight rise or fall patch of grass about 150 meters S of the 1000. Birds were invisible in the grass. Could not get out there due to fence and water, but the area appeared similar to flat by the road (through the scope). Short grass, less than 8" tall, very thick. It is a cleared palm swamp in which the palm has been removed and the grass grazed and/or cut down from a height of ~3ft to 8". There are also cattle, horses, egret + this in other parts of the field (closest birds area 100-200). Scoured the area where they went down with a scope for several minutes + saw nothing of them. Did see