JP Myers 1974 Charadrius falklandicus Lago Baquedos, Pcia de Tujuy, Argentina (2000') 17 June several falklandicus in a flock at ~30 Charadrius pluvius, including both collaris and alticola. They are foraging along the water's edge on a extremely broad (2000m+) salt flat. They are the only shorebirds present, + their small numbers are overwhelmed by the uniformity of the habitat Estancia Medland, 35 km S. of Tandil by road, Pcia de Bs Aires, Argentina 23 August scattered falklandicus in the Arroyo and up on Tower Llanos. Saw 6 in short grass habitat, a small flock and several solitary individuals. There are few along the Arroyo but several times I saw signs of territorial interaction. No banded birds present, but 'bump' (see 26 April) was in the same area when it was in April. Or at least a bird with the same cranial deformation is there. Most falklandicus are in spring plumage, or very near to it. A few, all in the Arroyo, remain in winter plumage. Mouth of Canal Vinto Laguna Mar Chiguita, Pcia de Bs Aires, Argentina 24 August 12 Ch. falklandicus foraging on the mud border of the mudflat (p 66 for map) aggression - but it is hardly organized in a space-specific fashion. Considerably confusing, it would appear. Many well molted, although a few dull ones remain. Arroyo Chico, Estancia Medland, 35km S of Tandil by road, Pcia de Bs Aires, Argentina 25 August 0800 - 7-8 subunits 7 and 8 BANDED Ch.f: Left Red!!! foraging solitary but no one to interact with to tell me if it is territorial. A flock is there as in the opening between 7 and 8 as usual - 8-10 birds but none banded. One put out a flying effort reminiscent of LOR's last April-May: whirling straight up tossing from one side to the other touring down the Arroyo. I am finding folk upward again in short-grass fields. They are not common, but I've seen so many up there as down in the Arroyo. 0840 - new spot for feeding Ch.f. watching a bird near a group of LOR on a saturated mud-bar in the Arroyo. This individual runs between sleeping sites like a typical Ch.f. but when it slows, it places one foot forward (sometimes the right, sometimes the left) and vibrates it for 1-2 seconds