September 19th. Fine all day--only in late afternoon did a few clouds collect around peak. Went up to owl cave with W.B.R.--no owl but remains of hundreds of rats, incl. Stenogys (the most common), Rattus?, Mallomys (all full-grown young), peroryetes, pseudocheirus (1) this in clean fragments of bones on the floor, left from a year-old mating. Only a very small portion examined. Also about 10 pellets varying from fresh to disintegrated picked up--not yet examined. Also remains of grouse and a few other small birds--remains very fragmentary. Also old owl feeding place under 2 other ronks and all at or above timber line. W.B.R. found many scots? under ledges and rocks and assumes they must be mallomys. They're very large and at first I thought they might be wallabies. Myzomela rosenbergi one adult ♂ flew by me when I was in talus rocks at 4000 m up where only a few clumps of shrubs permit. Turdus 4000-4100 m, near, chirping loudly on rocks. Anthus Fairly common, singles up to 4s, on big rocks of lower talus slopes.