Twelfth annual report of the Japanese bird ringing scheme, 1st April, 1972 to 31st March, 1973

Abstract

During the period covered by this report, April 1, 1972 to March 31, 1973, total of 27, 543 birds, 113 species were ringed at 16 ringing stations and 6 other localities in 18 prefectures of Japan. The number of birds ringed and released is shown in Table 1. The names of localities of the ringing stations and the cooperating ringers are shown respectively in Table 2 and Table 3. Recoveries of birds ringed by our ringing teams and the cooperators are totalled to 126 birds of 28 species, of which 32 individuals of 8 species were reported from foreign territories. Those recovered at or in close proximity to the places where birds were ringed, and those less than 9 months after ringed, are not described here. Furthermore, those of Motacilla alba and Delichon urbica which were recovered at the ringing places, even though more than one year after ringed, are also excluded. Recoveries of birds ringed by the ringing team of the Forestry Experimental Station, Ministry of Agriculture and Forestry are mentioned in Appendix, but their ringing information are not described in this bulletin. During this period, recoveries of 32 birds of 8 species ringed abroad were reported from the interior Japan.