JPMycos 1994 Tryngite subbryficollis 09 20 January (cont'd) Tower Llamos, Estancia Midland 35 kms S of Juanico by road, Peña de Bs. Aires, Argentina The ground. This position was alternated with having the hill decked. During both, the body was flattened laterally ( instead of ). 0800 - 1700 bird (see prev page) has held ledge area of drainings for last hour. Apparent now that it is defending at least 15 m of Llamos also: 50m drainage X tower Kept at 400 birds off very consistently, usually flying at them. Chased 7 buffios + 3 WR in one hour. Although it considerably evicts intruders, "patrolling" is not so apparent as 1/18 bird in same position. Do not "marching up & down transect", but feeds inland, zigzagging up & down instead of direct march. Also have extension following data on one bird in 4a grid. time I = 0735 to time 30. At 0800 it ran Toward other birds from 4a (5,1) to 4b (0,0). As it ran it held its wing up running ~1.5 m in air, it up. If then stopped & turned the way, continued running, raising the right wing on the W side of (0,0). The other bird, when P reached the forest of (0,0), held its left wing reared for 7 sec, wavering the primaries up & down while holding the wing. Periodicity of 3 times in 2 sec. . Pretreated. 23 January 0710 - buffio territorial interaction in new grid (#10) at base of tower, unit (4,3). 0900 - see following data in Grid 4 book p 63. On at least 9 separate occasions during the 60 min of following data, another bird flew in, & the bird being watching, K, raised its wing before flying to supply plant. Wing toward intruding bird is raised, so that the intruder gets a flash of white. In (border clashes (with territorial neighbors), a very typical behavior is "mock-feeding" , in which feeding may be accomplished, but during which the tail is held down & tail feathers raised : . This is very obvious because a gap between the folded primaries and the lowered tail appears when viewed from the side. Quite detectable from distance. In the 60 min observation series