J.P. Myers 1974 Journal (11) Estancia Medaland, 35 Km S. of Tucumc by road, Ptdo de Madariaga, Provincia de Bs Aires, Argentina 5 October (cont) with (6,12), (7,10-11-12), add (8,9-10-11), and (9,9). It was plowed 3 years ago, and planted with corn, the signs of which did appear thus part water. However, obvious furrows remain, giving the area severe microtopographic relief - 'hills' of 6-8", 2' apart + running in a N-S line. The area in which the flocker was was noticeably more flourishing than other surrounding areas. When we arrived at 1800 I was surprised to see a considerable number of birds already in the area - 100+ Tryngas and 200+ Pluvialis. See flocking accent re behaviors. Shortly after sunset (1855) they flew, but we were able to keep track of some until after dark. At 2000 we marched out to their position and placed stationary nets. Unfortu- nately, the kick in the stomach which I had received 3 October prevented me from working mobile nets or pulling out a full complement of stationary ones, see flocking accent re lack of success + lack of strategy + lack of success. Linear Grid, Arroyo Chico, Estancia Medaland, Ptdo de Madariaga, Provincia de Buenos Aires, Argentina 7 October Began reading the linear grid at 0655 - temp 80, 70% clouds, no wind, a boiling morning. Given the lack of rain the waters on its way down again, revealing new islands' or various points along the length of the arroyo. This does not seem to have done very much for total wrk #3, though: grid totals Calidris fuscicollis 24; C. bailii 5; Limosa hamatica 1; Tringa flavipes 2; Pluvialis dominica 6; Charadrius falconarius 1; Himantopus leucocephalus 1; Phalaropus lobatus 0.1; Euxema maguari 1; Anas georgica 6; Anas flavirostris 2; Larus maculipennis 2; Lepomis refa 1. After sampling we turned about, searching for banded birds and ensuring total birds along the 3Km stretch. Dismal: C.fuscicollis 42, Charadrii 10, Microcera lana 9 Limosa h. 1; Tringa f. 2; Pluvialis dominica 7, Charadrius falconarius 4; Himantopus 4, Phalaropus olivaceous 1, Chauna torquata 2, Anas georgica 27, Anas flavirostris 9, Anas (shoulder) 2, Larus maculipennis 8, Sterna trudeaui 1. (23,16) Estancia Medaland, 35 Km S. of Tucumc by road, Ptdo de Madariaga, Provincia de Bs Aires, Argentina After a very warm afternoon taking microtopography (temperature up to 24°C!!) I paited beads the second windmill in order to observe roosting flocks coming in to the area. At 1830 I began taking notes, oriented in flocking accent, re timing + numbers of birds flying in