Marshall (1942) Thyothorus plumostictus Chilate Only in that deepest gorge where every thing else of importance at Chilate has found. One pair building a nest in short tree in bottom of gorge, at least 2 males heard on N slope where dense thickets and larger trees were plentiful. Stands out as first men song in whole show - as I recall, a sustained varied song but don't recall exactly. If this is tree would be an exception along with T. infallus to usual pattern of double phases characterizing T. modestus, T._[illegible] and Henicorhina 1st spec. taken at very long range as sang from rocks in steep shady ravine on the N slope. I had to chase it for a long way up this hill - apparently was up in trees much of time, always singing superbly. Late another heard here. 2566 & 2567 were taken as they built a nest in bottom of