J.P. Myers 1974 Journal (22.17) Estancia Medaland, 35 km S of Juancho by road, Atio de Macharaga, Pcia. de Buenos Aires, Argentina 8 October cont'd actually lying just along the far edge of the wide Spartina strip (which defines the wedge of last night's roost). Upon arriving, I tramped about in the vicinity for ~0.75 hours in order to find the most likely roosting areas. [diagram with labels: Spartina, short swamp grass, bunchgrass, tole, small palms, car, North, ~300m, 100m of Spartina, roost area observed! 4 October (seasonal flushing accent)] The above diagram presents the distribution of vegetation/habitat types in the area. there is a very obvious polarity in a NE-75° direction; it continues for km's on both side of the diagram. We parked in the NW most part of the 2nd Spartina patch, S of the fence. I walked to the open, short swamp grass area near the car, and through several hundred m of tole to the NE. No Nycticephalus, but one Polyborus roost (see next accent). The obvious candidates for roosting were the 2 open areas lying on either side of the fence, the SW one being a beautiful green swamp of grass <6" high, heavily trampled by cattle with water filling the holes and occasionally forming small open puddles, and the NE one being