JPMyers 1979 Tryngites subnifriollis Tower Llanos, Estancia Medland, 35 Km S of Juancho by road, Pto. de Madariaga, Provincia de Buenos Aires, Argentina 23 January (cont) 1435 - while taking Grid 10 reading I picked up a fight - possibly border - between 2 buffies. Both birds were crouched parallel. Particularly striking in one of them - leaned with body width axis (e.g. cross section) tilted so that the fan side [illegible] from the other buffy was higher than his near side. [illegible] birds facing up from page). It was exactly like a LWR posture which I have seen in border fights between LWRs. 1432 - a buffie that has been on grid 10 consistently during the afternoon, suddenly flew to the head of the drainage area, joining [illegible] other birds there preening in the dirt. 1515 they are still there. 1530 my eye was caught again by this group/birds when they showing white underwing started wing flapping. I looked up + saw 3 birds there. 2 were cupping their wings (described ). Both of these birds appeared to be focusing the wing cupping towards a 3rd bird (which was) with them, both. [illegible] [illegible] buffie [illegible] cupping [illegible] (from above). The other bird is definitely the focuser (both cupping) birds facing it. The cupping birds hopping a bit too. All of a sudden they flew. One returned to grid 10. This is the first bird on the grid since 1500. During the rest of the afternoon (until 1900) Buffie appeared on Grid 10 only infrequently. 24 January 0740 buffie landed on grid 10 in (3,3), immediately beginning to fight with other bird already present. The fight was intense. 1/24 B was not able to supplant it, and returned to original location in (3,4). 1/24 A remained crouching while 1/24B went around feeding in (3,4) with tail down - i.e. tail down dragging behavior. Finally 1/24 A began foraging (landing off) to (2,5), n(2) region of grid 10. 1/24 A chased a bird out of 0,0 w area. It looked as if 1/24 A was ignoring it to with it same territory that 1/23 R' defended. But then 1/24 A flew to Grid 11A. 0748 another bird is in the recently vacated area in 10 - I don't think that it is 1/24 A, but it may be. The topography of the interaction between 1/24 A and 1/24 B strongly suggested that both birds were territorial. 0750 buffie 1/24 B chased bird out of (1,3). Struck by size difference between these 2, with 1/24 B being bigger than other. 1/24 C flew to (3,0) + was chased again by another buffy. Left grid