Eleventh annual report of the bird-ringing scheme, 1st April, 1971 to 31st March, 1972

Abstract

During the period covered by this report, April 1, 1971 to March 31, 1972, total of 16, 744 birds, 112 species were ringed at 18 prefectures of Japan. The number of birds ringed and released is shown in Table 1. The names of principal ringing sites and cooperating ringers are shown respectively in Table 2 and Table 3. Recoveries of birds ringed by our ringing team and its cooperators are totalled to 142 birds of 30 species, of which 28 individuals of 15 species were reported from foreign territories. Those recovered at or in close proximity to places where ringed, and less than 6 months after ringed, are not described here. Furthermore, those of Motacilla alba and Delichon urbica recovered at the ringing places, even in caes of more than one year after ringed, are also excluded. Recoveries of birds ringed by the ringing team of the Forestry Experiment 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 13 birds of 6 species ringed abroad were reported from the interior Japan. Besides these, one recovery of Diomeda exulans was reported from a Japanese fishing boat on the sea off the coast of southeastern Australia. This bird was banded at Kerquelen Island.