Collisions of White-tailed Eagles, <i>Haliaeetus albicilla</i>, with wind turbines in Hokkaido, Japan (Understanding the effects of wind-farms on ecosystem)

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  • Shiraki Saiko
    Department of Bioproduction, Faculty of Bioindustry, Tokyo University of Agriculture

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  • 北海道におけるオジロワシ<i>Haliaeetus albicilla</i>の風力発電用風車への衝突事故の現状(<特集>風力発電が生態系に与える影響を考える)
  • 北海道におけるオジロワシHaliaeetus albicillaの風力発電用風車への衝突事故の現状
  • ホッカイドウ ニ オケル オジロワシ Haliaeetus albicilla ノ フウリョク ハツデンヨウ カザグルマ エ ノ ショウトツ ジコ ノ ゲンジョウ

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Abstract

The recent construction of wind-power plants in Japan has raised concerns about bird collisions, especially involving White-tailed Eagles, Haliaeetus albicilla, in Hokkaido, Japan. Although White-tailed Eagles are protected in Japan, no measures have been taken to prevent collisions. The major objectives of this report were (1) to examine trends and characteristics of White-tailed Eagle collisions with wind turbines based on an analysis of accident reports and some field investigations, and (2) to explore possible ecological and life history traits related to the collision of eagles with wind turbines. Twenty-seven White-tailed Eagle collisions occurred between Feb. 2004 and May 2011, in Hokkaido. Most of the fatalities involved immature White-tailed Eagles, including juveniles, and occurred from December to May, when both residents and winter migrant eagles are present in Hokkaido. This report emphasizes the need for measures to prevent collisions of White-tailed Eagles with wind turbines.

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