J P Myers 1974 Journal 81 Arroyo Chico, Estancia Mottled 35 Km S of Junin by road, Río de Madreng, Ricia de Bs. Aires, Argentina 26 April 1700 returned to subunit 6 area, and found Cliffall Ryllog Zonibyx Roj and WR's RyLpyr and Rplr foraging there. The first two were in their territory, the latter foraging together. I tried to take a microdata from Rplr but could not because, after having followed the procedure, selected the point to measure (from the car while watching the bird), I found that I could not locate with absolute certainty Rplr's exact position in the under. It, of course, flew and floundered about at the Arroyo. So I went up to subunit 10-9 and took data from two unbanded birds. 27 April reached Arroyo piedraum and had shots up by 0720 Sun on horizon at ~ 0830. OR arrival time uncertain, probably about 0725 Niffed & OR, banded them all.