J.P. Myers 1974 Journal Tower (1,15 region), Estancia Melalaland, 35 Km S. of Juanlicha by road, Pto de Madeninga, Parid. Bs. Aires, Arg. 21 October (cont'd) space-specificity in the morning. Goldene also showed oscillation but they were nowhere nearly as pronounced. However, both species increased in X in the late afternoon. If we act whither, in time over the whole unit - i.e., treating 176 m at a given time as a subunit, the whole of which is 176 throughout the day - to what extent are bufffuo and goldene clumped; X values are 1.34 for bufffuo and 1.27 for goldene. In other words, both species tend to aggregate in time on the subunit slightly more than random, but not differently from one another. Explanations: this is to be expected given that both species move in and out of the general area in flocks, but local movements occur in small groups or individuals. Initially, both goldene and bufffuo appear to get to the foraging area in a similar fashion, but once there, disperse differently. We remained until the birds took off at 1817, took an 1830 sample (two birds) and left. I am afraid that for some reason bufffuo are not using the 5x5 m stated units (i.e., 16). One possible factor is the pair of Kiskadee flycatchers which are building a nest on the tower. I became aware of the fact that they were a disturbing influence several days ago, and I saw them (while scanning grid 15) perched on the tower and flying out after goldene and bufffuo when the Alcidae (the shrikes) caught anything which took sure them a second or two to digest. Both species will fly from stakes (as does Oreophylax). When we are in the tower, an occasion the Kiskadees have used the grid 16 stakes as perches. I therefore have removed the first several beginning of the next several trims from the tower, and may be forced to collect the Kiskadees. 22 October We reached the tower this morning at 0615, before any bufffuo were in the area. However, Murciels were already present on the grid. Sampling began at 0645 - 8 on 17a and 14 on 17b. Totals: 17a Bufffrested sandpiper 14 (8-18)112; Golden plover 6.4 (4-10)51.176 B.b.-spiper 9.0 (2-15)126; G.plover 5.8 (5.8)82. No clouds throughout the morning. temp increased from 9°C at 0645 to 17.5°C at 1100. Wind came up during the latter part of the sampling session. As yesterday, examination of X = f (time) revealed oscillation in the Tryngitidae dispersion pattern: the birds appeared to fluctuate in and from an under-dispersed state into a nearly random pattern (over even slightly over dispersed) and