JP Myers 1974 Tryngites subruficollis 37 17 September (cont'd) (0,18) region Estancia Medelar, 35 Km S of Juanculo by road, Ptdo de Madariaga, Provincia Bs Aires Argentina 0830 head ravaging in directional flock. 0832 the flock seem to be stabilizing in that area. This area is ca 25-50 m where 'A' had been doing his thing. 0835 still some directional component to the flock, at least not all the birds have ceased parallel movement, going closer to A's site. 0846 bufflos within 5m of edge of 'A's site, but none on it. 0902 no one moving in, flock stabilized. 0923 I had picked up a bird to watch at 0902. It has not left a 2.5m radius circle. Another near it (5m). Most of them peering. Now moving with its neighbour and another towards A's spot area. Then a series of Supplantaena with 2 different birds in turn bring the supplanter caused me to lose track of identity of 6 birds. The first of these 2 then flew 25m to land beside another, tail down, and supplant (avoid) Oh for a better grid. OOPS (3,16) Estancia Medelar, 35 Km S of Juanculo by road, Ptdo de Madariaga, Provincia Bs Aires Argentina 0950 collected a buffle from a flock of 6 others + many Phylisalis. First time I've seen them in this area this spring. (24,16) Estancia Medelar, 35 Km S of Juanculo by road, Ptdo de Madariaga, Provincia Bs Aires Argentina 1755 (see journal) 3 bufflos came in from NIO. Flew very low over the swamp in front of us (as if to land, in fact they entered the last stages of pre-flight landing) but then flew on to the SE. (0,18) region, Estancia Medelar, 35 Km S of Juanculo by road, Ptdo de Madariaga, Provincia Bs Aires Argentina 18 September First bufflo appeared flying over (3,19) lawn at 0631. Incident artificial light = 40 ft candles. 0745 - 2 flocks, #15 and 30 bufflos, respectively. Night = 17.5°F. After they landed immediately behind us, 30 m south. The bufflos began feeding immediately, must have been NE from where they landed. 0746 5 more. They are spooked by a few herders flying away, swinging round & landing in a tight flock. Feeding is moderately when they landed the 2nd time they began to disperse radially from the landing center, but it was not even - i.e. although it was radially many levels were not evenly distributed about the whole phalanx circle, i.e. several groups broke out of main group & went off as different subgroups from center of landing. 0750 some are remaining as the [illegible]