Pearson - 1995 13 last night in the dark by smell. 26 November.- Night clear, frost on windshield. My trapline along the cliff had one Phyllotis in a steel trap right at Liz's amberat. Anita's line was untouched. Her 18 traps put out yesterday in the flats across the road (sandier, bushier), had 3 Eligmodontia and 1 Reithrodon. Two traps had been stolen. My two traps across the road on top of mima mounds had one male Ctenomys haigii just like the one yesterday in size and color. There had been no sign of recent tuco activity, but when I dug down there were good tunnels. Released the 7 Phyllotis, alll big adults. One of the three Eligos was a lactating female. Broke camp at 10:30. Tero-teros, ibis, swallows, plantcutters, white-crowned sparrow, marsh hawk, pecho colorado. No sheep droppings, only horse. Stopped at the box canyon a mile up the road (where the horned owl was nesting on the ground several years ago). No sign of the ibises but old mouse bones under the cliff including >4 Lestodelphys. Along the cliff to the right was one place with unconsolidated amberat. To the left were deep low cave, perfect for amberat but only caked sheep droppings. Next to it a shallower cave but no shiny amberat. Lots of dark lizards. No owl pellets. Then drove east to the owl cliff west of Clemente Onelli where I had gotten over 20 Lestodelphys skulls many years ago. It is situated at the edge of a very large juncus marsh (a little standing water but mostly dry). Many sheep in the shade at the base of the cliff. Found a few dozen old pellets plus assorted loose weathered bones. Many of them marsupial. Picked up all the marsupial skulls and jaws that we saw, plus a random assortment of mouse skulls. Also all the pellets, a couple of dozen. None was recent; maybe last winter's weather killed the owls? Then home to Bariloche. Saw no rheas, only one squashed hare. 6-8 condors roosting on the Arroyo La Fragua cliff at 8pm. 27 November.- Bariloche. Sunny and warm all day. Eileen Lacey and John came for lunch. They brought a tuco rostrum and an Auliscomys from am owl pellet showing that nocturnal owls eat diurnal sociabilis. John went