Argentina field notes, v1505
Page 249
Image from the Biodiversity Heritage Library. Contributed by Museum of Vertebrate Zoology, University of California, Berkeley. | www.biodiversitylibrary.org
Transcription
JPMyers 1974 Journal 08 Farmhouse area, Estancia Medeland, 35 Km S. of Juancho by road, Ptdo de Madariaga, Proin de Buenos Aires, Argentina 14 January 0800 sky clear, nearly windless, temp 70°F. Lois & I walked from camp to the W edge of the Eucalyptus grove, then E through tall Pampas grass ~ 1 Km until reaching a large swamp running in a W-S direction. After following that the Wedge of the swamp for 2 Km W, we cut NW until approaching the area where we had camped regularly in the end of November. At this pt we turned S, following our old "road" and returned to the Farmhouse Eucalypts by 1200. The purpose of the trip was to find other areas being used by Dowland sandpipers — i.e. WR and Pictorials. However, as far as they were concerned the trip was a bust. Until just before heading away from the swamps we had seen no shorebirds. Then, after 2 hrs of lagging, at ~1030 I saw one WR flying S. No other WR seen until on the "road" back to the farmhouse, when I saw a flock of 7 going S. Along the edge of the swamp were many long stretches of area where I would not have expected to find white-rumps or Pictorials: grass too high or water too deep. But several locations were almost identical to spots where I had found pictorials previously. Especially one of the "micro-bays" of water extending (S.E.) fashion, where the bay was well along the way to drying. Saw NB-10 least Bittern, each one solitary and spoiled it from a spot along the periphery of the swamp. Several Plumbeous rails, a smaller unidentified rail or crane. And 3/4 of a dozen ducking birds, including Asthenes sp., Phleacrypta, fimbriaris(?), Tachuris rubrigata, Pseudalecyptus etc. As usual there were several I could not identify. Found 2 snails, one of Sicalis flaveola — Aegro, 800 in a dead or dying "stump" of Pampas grass, the other was a genus sp. - which flitted away before I could get a good look at it — this snail was in a similar spot to the last one, but had an obviously worked tunnel cleared through the bush to get it. 3cgs. Just before heading NW from the swamp we succeeded in approaching 2 (Fryson sp.) — the mudlark I first saw in Paraguay, this pr (a 3rd spotted) may have been 2 juveniles — they appeared smaller than the one that left, and conversed in front of us for 10 min, 15" away, reluctant to our presence. Took 2 poor pictures. At first I thought that there was several, but in the end it appeared not to be. Crossing to the NW on the way back was considerably earlier than our first approach to the swamp from the early in the morning. First, it was darker, as the swamp angled toward the road. But more important — the Pampas