鳥類標識調査 Ministry of the Environment  Yamashina Institute for Ornithology

Bird banding is a research technique based on the marking of individual birds. Wild birds are captured and released after attaching individually numbered leg bands or other markers. Recapture and observation data are compiled and analyzed in order to understand their migratory routes and various ecological aspects. Research results are used to determine bird management policies and promote international cooperation.
In Japan, the banding of birds for research purposes began in 1924 by the Ministry of Agriculture and Commerce and has continued for nearly 90 years. At present, the bird banding research project is conducted by the Ministry of the Environment, which commissions the project to the Yamashina Institute for Ornithology.
Bird banding is conducted at various sites throughout Japan by qualified bird banders, who have expertise in bird identification and the skills necessary to catch and release wild birds safely. About 450 banders join the project on a voluntary basis nationwide.
The total number of birds banded between 1961 and 2011 exceeds five million and many facts have been revealed through this research.

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