J.P. Myers 1974 Tryngites subroficollis 34 (2,1B) region Estancia Medaland, 35 Km S. of Juancho by road, Pto de Uldariage, Pcia de Bs As, Argentina 17 September (contd) the buffo but I've seen so far have been flying ≤ 1.5m above ground. 0646 - more buffios, they seem to be landing in the NW corner of (1,14). 0647 more. It may be that a very low wet will pick up some of the early arrivals. 0648 1st buffy on ground in front of plane, also 3 flying by. They seem to be coming in in little groups, a few at a time. 0651 first significant flock - 20+ birds, then a few moments later 15 may. 0652 this landed in front 0653 2 way. Most of the buffies are coming in from NE. 0654 as a big flock went over the buffo in front were left. then 2 more 0657 - noticeable pause since 0659 in buffie influx, then have been more going by. 0659 a flock of 30+ foraging 100m SW of me with goldens. flew 0701. 0724 found buffie flock again, approx. when it was at 0701. they have been flying frequently within the area where the flock is foraging. It looks as if a Pitangos is speaking them. Yes! - as a Pitangua fligo from spot to spot the buffies seem to fly away, going 5-10m and landing. 0729 buffy within 30 m of car, behaving in directional mode (see note 15 Sept). Moving E at a few metres/minute. Cup wing display! and a chuck, another cup wing! STILL didn't get the final cup-wing was followed by something else - similar in terms of wrist position but the tops of the wings were at the tail. breast up. The wrists are held out from the body. 20 of them in the flock they 20 are 0730 4 of them have dropped back now, feeding tightly. Lot of hopping (the type that occurs a when one bumps another + the recipient hops to get away). did not see actual bump). The 4 that dropped out have become B (0732) and they are in the same position as they were 0729. Others have moved 30 m W. Of those B, 3 are feeding, 5 preening. Did they drop out? 0733 all of B are feeding now - maintaining static mode however bodies as if in static mode the individuals are somewhat (considerably) more dispersed, no obvious parallel orientation as occurs in directional mode. [supergammas: if takeoff appears in tight flock parallel orientation, decrease aggression then directional mode may result in situations where increased frequency aggression is desirable; alternatively, a directional flock could be 'tighter' because it is parallel] 0740 Flock (primarily static flock B) and the directional flock (now called A) is slowing down or stopped. In B - lowered head chasing, reminiscent of fights in classic buffy border battle. Directional flock (A) has definitely broken down now, many birds precisely.