Rio Chinchibin, Black Bridge April 15, 1980 (cont.) Half grown young [illegible] acorn in front of us - about 10 I think. He shot a picture or two of their disappearing asses. Then a bit beyond we spotted 6 adults feeding on a hillside. Woody tried to stalk them for a photo but he only got about 20 yds when they all took off. A big flock of geese returned to the bar where we found them a week ago. I took several photos of the birds sitting and in the air when I flushed them. As we drove out a hind red deer bounded across the road in front of us. She looked very healthy and sexy, with good pelage and lots of bounce. He has seen lots of trache but only this one seen so far. I saw a pair of ducks that I had not seen before, possibly Anas georgica. The bills of both birds were conspicuously yellow, but precise identification in Obreg is impossible. Also saw several "mask-faced" ducks which may be Anas specularis. As we approach the end of our visit to Argentina we are trying to pull our thoughts together. I am impressed with how well the "estancia system" works to protect its resources of wild life, as compared to the "ejido system" in Mexico. A responsible manager of an estancia concerns himself about the land, the livestock [illegible] as livestock health. His leads to concern for the families that manage the land. In an ejido it is very much for himself. Also every burro, cow, and brown tailed pony.