J.P. Myers 1974 Flocks (23,16) Estancia Medaland, 35 Km S. of Juancho lay vond, Pro de Madariaga, Prcia da Bo Aires, Argentina 2 October see Tryingito ap acut re roost raiding aft 1830 - for Tryingito. 5 October 1800 - already several hundred storkbirds live in the roosting area - many Pluvialis (200?) and at least 100 Tryingito. At 1830 we are seeing small flocks of Tryingito flying in mostly from W (0,18 region?). They come in very low, no more than 2 m off ground, and land with little fanfare or fussing. Some fly loops over the area. Birds are foraging. Have also seen a courting display by a Tryingito. 1900 - shortly after sunset (5 min ago) the flocks began flying - a tremendous flight going up to 20 m altitude initially. Many appeared to have gone off to the east. They flocks could be seen flying for many minutes after the main take off - looping around a few m off the ground. Golden appear largely to be leaving but many Tryingitos have returned (at least 200 accumulated in the field prior to take off). I was able to follow one group of 100+ until dark. At 2000 we advanced upon them and started to net them, stopping when we reached the immediate area of the roost, and planting these nets: tower llaw's fence [sketch: roost area with nets, tower, vond] we then circled around the flock + tried to herd them into the nets - they didn't go - barely missing. If I had not been suffering from a horsekick we would have placed more nets in which event I am positive we would have caught some. They behaved as the other night - allowing us to approach (tonight closer - less than 2 m because of no moon) and then fluttering up + away in a tight group. (23,16) Estancia Medaland, Pto de Madariaga, Prcia da Bo Aires, Argentina 7 October observing flight into roosting period windward! 1830 - 1VL: 500 2&WK 1pect 3golden