SP Myers 1979 Journal Estancia Medland 35 km S. of Juancho by road, Pcia de Buenos Aires, Argentina 5 March (cont'd) [illegible] Pseudobator, cliff + WR swallow, refers-backed nigris. In the Arroyo when I crossed into La Diaria, I heard a few Charadrius falllandiius, a crunorant, and some Speckled teal. No WR snappers. From the fence at Point B it was possible to survey a moderate size pond on La Diaria, with a tremendous amount of exposed black mud. Eliphantine viewing was poor because of heat waves + distance, but through the scope I detected a few WR, some Vega, Bilt Shift, or many ducks of at least two species (Speckled teal + Anas versicolor). Screamer. Although I said that I was looking for buffle, after shaving down the vegetation through which I trudged, I damn near suspected that there were more. It was too slight, too tough. Only in one spot, on the E-W side of the fence at A [illegible] was the vegetation close to being appropriate. And here, though the grass looked right, this was actually brush - the patches of brush were too close together. Arroyo Chico, Estancia Medland, 35 km S. of Juancho by road, Ptdo de Madariaga, Pcia de Buenos Aires, Argentina 7 March Reached linear grid subunit #1 just before sunrise, which occurred at 0740. Temp = 17° at 0530 AM. Clouds 20% - a dense line of high cumulus to S. which soon dissipated. Wind 0 at dawn. Began reading linear grid 0746. Total White-rump 15,16 (31); Charadrius falllandiius 5,12 (17); Greater Yellowlegs 1,1(c), SN Shift 1,1,1(2); Southern lapwing 6,3(9); Neotropic Cormorant 0,1(1); Speckled teal 9,5(5); Shoveler 0,3(3); Cocoi heron 0,3(2); Rufous-backed Migrato 1,0(1); Correndera Pipit 0,1(1). As usual, this early morning run was followed by a return down the Arroyo, counting birds and searching for bands. Totals: White-rump 9 28,66 (94) ; Charadrius falllandiius 11,37 (48); Golden Plover 1,0(1); Greater Yellowlegs 2,2(4); Black-headed Silt 1,2(3); Southern Lapwing 7,7(4); Southern Screamer 2,0(2); Speckled teal 0,43(43); Shoveler 0,3(3); Brown-headed gull 1,0(1); Rufous-backed Migrato 1,3(4); Correndera Pipit 3,8(9); Geositta 1,1/2). Several items of interest: First, a high number of Charadrius falllandiius - subunits 6 and 5 - in it were two banded birds, Right green and Left pink. Secondly - a high number of Correndera pipits, which hunts for food here, if anything, a very irregular visitor to the Arroyo water line. I should note that as of today I have sighted all but 2 of 13 C. falllandiius banded (today I saw 5). And finally, a new WR resighting (in addition to 6 others) - RR Lp, first banded in the Arroyo 15 January. After finishing the band search we returned to subunit #5 to follow a banded WR, RyL00, that has been there since the day it was banded, 21 February (200 WR spaceant).