JPMyers 1974 Journal 69 Towerllanosa Arraigo Chico, Estancia Meteland, 35 km S of Juando by road, Pte de Vladaraga, Provincia de Bs Aires, Argentina 11 April ontd of 2 old barked birds not seen for several weeks: Rylpy and Rp lg. The latter was on its old territory. After completing the circuit we drove out over the llanos to Tower Llanos swamp. En the road, despite a fairly thorough search of the llanos S and E of the thistle patch, I found only 2 baffle (but many Thinocon). The Tower Llanos swamp now has dried to the point where a border of mud buffers all but a very small stretch of tile from open water. In fact, there is now a minimum of 3' of very dried mud around much of the main body of water. WR #3 down to 25 birds (one banded- Rylg) - and now these are more fall landing along the dried mud border. I tromped through several patches of tile, including one with water at the base, but was unable to spot any Mysticophus to flight. There were no ducks or game in the pond either, nor even any coots. From the llanos swamp we drove back to the Arraigo, and I continued up to Rk 11 Bridge. WR along the Arraigo were predominately in several small and tight flocks - very few obviously territorially spaced birds except in one area, ~500 m W of the N end of the linear grid. Skilled. Found one Golden in the pastures along the Arraigo, and many small flocks of Scolopax. Only one Emibyx along entire stretch. Returning to camp we passed over the NW part of Tower Llanos, still looking for baffle. Not only did I find a flock of Tryngite (~15) but also 12 Oreopholus (collected one- 130) and a very tight flock of 10 Emibyx all within a small area about 50 m NE from unit 32. of Grid 4b. Shorebird diversity on the llanos is up! Returned to camp at 1500. During the late afternoon I went out onto the llanos again, going first on a general survey to find any baffle birds - I then located myself- mean the only group of baffle seen: they were on Grids 7 and 4b. In addition, one Emibyx was foraging with them, a flock of 14 Oreopholus was in 7 and the thistle patch to the S; and Thinocon were in the thistle and around the border. Vaneilis plus Thinocon were the most widely distributed spp on the llanos apart from Historia and Anthus (although both of these may have decreased somewhat in diversity, particularly the latter). At 1825 I moved from my observation point on just W of Grid 4b (0.2) to a site nearer the flock of baffle birds, in (0.1) of Grid 4. (See Tryngite, Emibyx, Oreopholus and Thinocon sp acant) Sun hit brings at 1925, ylackar sky + light S wind. I returned to camp 2015.