山階鳥類研究所研究報告
Online ISSN : 1883-3659
Print ISSN : 0044-0183
ISSN-L : 0044-0183
アオゲラによる通信ケーブル用電柱の折損について
風間 辰夫
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ジャーナル フリー

1980 年 12 巻 3 号 p. 225-226

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A breakage of a new telephone pole located in Irihirose-mura in Kitauonuma-gun in Niigata Prefecture occurred on September 30, 1980. The cause of this breakage has been investigated: on the new telephone pole approximately 7 meters above the ground, a nesting hole whose caliber is 8cm was bored, and feathers of Green Woodpeckers and hair of racoon dog and of rabbit were found inside the nesting hole. Consequently, it made clear that the new telephone pole breakage was due to the Green Woodpeckers' behaviour.

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© 財団法人 山階鳥類研究所
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