The Musashi Imperial Tomb area, situated 40km. to the west of Tokyo has a good forest cover. It was planned to propagate useful small birds for the protection of this forest. Preliminary census of bird population has been begun to obtain data to be used in more detailed study with various instrumental devise now being planned. The results will be published as the study advances, which will be made by Y. Yamashina, N. Kuroda (Yamashina Museum of Birds), T. Udagawa, M. Seki (Forestry Station, Ministry of Agriculture and Forestry), T. Royama (Forestry Section, Faculty of Agriculture, Tokyo University), and M. Uramoto (Biological Inst., Faculty of Sci., The Tokyo Metropolitan University).
