JPMeyers 1943 Journal 53 Mouth of Canal #7 into Laguna Mar Chiquita, 22 Km W by road from Mar Chiquita, Pcia. de Buenos Aires, Argentina 17 October contu @ 15 minutes too late to get there without disturbing the (circle)ly 0530 then was too much light. Mollled by gulls for 10 minutes, they then left. 0600 6 peeps, 6 black shermanous, a pair of Pheocryphus woo feeding in the tole within 3 ft of me most of the morning. 4-colored tyrant, Agelaius. 6-14 kept there all morning, as well as golden plovers, tree-tews. At 0602 the sun was on the horizon - little wind, temp in the 50's, cloud cover ~ 25%. At 0605 I started sampling #'s of peeps every five minutes, and continued until leaving at 0730. Then Wilson's phalaropes ad about 10 still sandpipers came and left while I was there. Hudsonian godwits around all morning. The usual contingent was present. After leaving my hiding place- easily collected five white rumps from the flock I had been watching. Estancia Mabaland 35 Km South of Juanerio by road, Pcia de Buenos Aires, Argentina. 1530 we entered the Estancia by the gate immediately to the SSW south of the housing complex by the road. A dirt road leads present east here for Km through a classic buffy-golden plover field, with over Arroyo Chico, through a dryer + taller set of grass and a tide swamp, on the other side of which the road ends at another housing complex. About a km east from Rte 11 became a series of small, vegetation filled (grass) roadside puddles, and a few larger ponds bordered by grass. I collected a preformal at three off the side of the road here (030) Saw at least 3 others. Scads of buffies and golden plovers along this stretch of the road - they are not at all spotted by the car. At least 100 gulls, with 150 buffies in one flock at that site. 1550 headed on east, 3 more Picobrals flew by as we took off. 1600 - 24 buffies within in a herd of cattle. Few of the birds (except the Picobrals) were feeding. For the next Km (or after gate) there were thinly scattered golden plovers with no buffies nor any picobrals. Then we entered another group of buffies, thinly spread with a flock. 4 on the right within 50 ft of road. 50 yds down road a road 14 buffies