JP Myers 1974 Journal Arroyo Chico, Estancia Nucleland, 35 Km S. of [illegible], Juancho by road, Pto. de Maclariaga, Ricia at Bs. Aires, Argentina 4 April Entered the [illegible] Arroyo at 0755 - clouds 35%, no wind. The level has dropped beyond where it was 1 April, to the point where the old island at the curve S. below the tower has now become [illegible] a peninsula. While running the grid we found several [illegible] where the water was less than 1m across, although in most places it is still 2m deep. For the first time Sawara wok swim (or wade) across, though current is still detectable. Grid totals: White-rump 20,11(51) Hudsonian godwit 6,0(6); Charadrius falklandicus 12,9(21); Zonibyx modestus 1,2(3); Southern lapwing 0,3(5); Black Necked Stilt 3,4(7); Wootropic cormorant 5,0(5); Maguari Stork 0,1(1); Speckled teal 3,7(9); Correndera pipit 3,0(1). Returning down the Arroyo we found 5 banded cur (Chunu banded before 2/16/79) and 2 banded Ch. falklandicus. totals: White-rump [illegible] (48); Charadrius falklan- dicus [illegible] (30); Hudsonian Godwit [illegible] (6); Zonibyx modestus 2,2(4); Black- necked Stilt 4,12(16); Southern lapwing 4,2(6); Southern Screamer 0,7(2); Speckled teal 0,4(4); Kelppull 0,9(9); Brown-hooded gull 3,3(6); Rufous-backed negrito 5,1(2); Cinclodes fuscus 2,2(4); Correndera pipit 0,1(1). 11 April The last week or so was spent in the capital, Buenos Aires. Upon return we were told that 2 days before (9 April) it had rained 36 mm. Today that is still evident, with a thick low mist hanging over the fields in the pre-dawn light. Otherwise, 0% clouds, temp 0700 = 9°C. Wind=0. The arroyo appears to have worn several inches as a result of the rain but by this morning it has receded to approximately the same level as 4 April (suggested by the 3' wide wet borders). Grid totals: White-rump 23,6(29); Hudsonian godwit 2,0(2); Greater yellowlegs 0,1(1); Southern lapwing 0,1(1); Charadrius falklandicus 11,11(22); Zonibyx modestus 3,3(6); Black Necked Stilt 0,2(2); Speckled teal 0,1(1); Yellow-billed pintail 0,5(5); Leucania rufa 0,2(2); Geositta curricularia 0,1(1). Running down the arroyo: White-rump 18,56(74); Southern lapwing 3,1(4); Charadrius falklandicus 17,39(56); Zonibyx 2,5(5); B.N.Stilt 4,7(11); Wootropic (Cormorant 0,8(1); Southern Screamer 0,2(2); YB Pintail 0,4(4); Sp. teal 0,10(10); Brown-hooded gull 3,7(10); R.B. Negrito 1,2(3); Geositta c. 2,1(3); Cinclodes fuscus 0,1(1); Correndera pipit 0,1(1). Mink was partially burned off by 0845, though soon after finishing the run it was discerning vision somewhat. Notable event today was the appearance