JPMyers 1974 Journal 52 Estancia Medland, 35 Km S. of Tuanche by road, Ptdo de Madariaga, Pcia de Buenos Aires, Argentina 20 March, cont'd were spp separated along the Arroyo, as far as the next fence. But here and beyond 2 larger flocks of 22 and ~25 WR foraged, they comprising the majority of birds. Mostly between the head of the linear grid and the Rt 17 Bridge, there were ~100 WR. Larks are very unreliable to note that individuals within the 2 tight flocks appear to have swelled considerably less than the birds along the linear grid. I took a series of 35mm pictures that should turn out well. At Rt 17 Bridge I turned around, forded the Arroyo in the Citroen in a place of sandy bottom, + came back down the Arroyo. To the W, in addition, I headed for buffl o for suitable habitat, of which I found none. Upon reaching the linear grid (after a series of detours composed by poorly distributed gates) I ran down, searching for stranded birds. See WR spaccnt Arroyo Chico, Estancia Medland, Ptdo de Madariaga, Pcia de Buenos Aires, Argentina 21 March Bogen reading (linear grid) 0818 temp=15°. Cloud cover was 20%, seabirds composed almost entirely of a solid bank to the NE along the horizon. The wind during the grid reading, though it came up by mid- morning, strong out of the North. Grid totals: White-rump 10,4(14); Charadrius (lathlandicus) 6,9(15); Greater Yellowlegs 0,1(1); Black-necked Stilt 0,2(1); Southern Lapwing 0,1(1); Neotropic Cormorant 0,1(1); Speckled teal 0,7(7); Brown hooded gull 3,0(3); Rufous-backed Negrito 1,0(1). [illegible] [illegible] (possibly: