JPMyers 1974 Journal 54 24 March could Tower Llanos, Estancia Medland, 35 Km S. of Trencho by road, Ptdo de Madariaga, Pcia de Bs Aires, Argentina spent an hour within the swamp. 50 WR sandpipers, 15 Stilt Sandpipers, 10 GYlegs, 15 LYlegs, 4 H godwits, 25-30 Nycticryphes, a few BN Stilt. The swamp has receded even further now. The 20 Poscoroba Siron present when I drove up were standing in the middle. Punta Raga, 15 Km W of San Clemente del Tuyu by road, Ptdo de Gral. Lavalle, Pcia de Bs. Aires, Argentina dawn fairly clear with ~15% cloud cover (17°), slight wind from the S. We arrived yesterday morning at dusk from Estancia Medland and camped on the beach ~300 m S. of the North tip of Punta Raga, side tilt but night was well out, as it was before dawn this morning. Sun rose horizon within one or two minutes before 8:00 On the windward (NE) side there is, at low tide, ~100-150 m of exposed sand beach. High tide appears (fujing from track way) to leave ~40 m left between waves and the low vegetation cover. The shoreline is not at all steep, rising no more than 2 m between low tide line and high tide (Estimate). At dawn we walked from the small shanty near our camp across a low flat which lies 500 m NNE of the dunes going inland to the SE side of Punta Raga, where an extensive area of mudflats exist. There we followed this high tide line west to the first major trough (300m) and then followed that inland (SE) for ~500 m. Progressing inland along the trough the soil becomes very muddy, and is at times impenetrable in foot (sans snowshoes). The mud is covered with coloniaria cache, which extend as far as from the low tide line up with the vegetation (which appears to be infrequently [at least] flooded). Much of the vegetation is Chicheria, also some salt-grass-like growth. After trekking through, then "cangrejales" for the approx. distance estimated above, we returned to the road, following it back to the car. Total time 3.5 hrs. The standard situation here is not as daunting as I'd expected (MAER note had described the place as a "staging area for Northward migration"). Although the windward side was humidly, we have not seen the habitat get as the tide turns out. Along the 200 m shoreward-side were a few scattered sandpiping, totaling no more than 10, plus fewer Marsh-stilted plover, 10-15 American Oystercatchers, 2 WR sandpipers, many Kelp gulls, ten road terns, and a Pavonistic jaeger (short-pointed central tail feathers extending less than 2", very rotly plumage with considerable rotate)