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Migration route and wintering area of Northern Goshawk Accipiter gentilis breeding in Hokkaido, northern Japan
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JPY
Abstract
ABSTRACT
Northern Goshawks Accipiter gentilis are widely distributed in forested areas across the Holarctic Region. To confirm whether the goshawks breeding in Hokkaido are migrants or residents, and to locate migration routes and wintering areas, I satellite tracked two breeding female goshawks in Hokkaido. Both two goshawks moved southward in winter. The distances between nest sites and wintering areas were 540 and 1,046 km, and the two goshawks stayed in the wintering areas for 98 and 148 days, respectively. These results suggest that some goshawks breeding in Hokkaido are migrants.
Received 11 10月 2007
Accepted 12 3月 2008
Acknowledgments:
I am grateful to T. Suzuki, T. Kawahara and Y. Takaki for their help in the field, and M. Ishizuka for reviewing drafts of this paper. Funding was provided by a grant from the Ministry of the Environment, Japan.
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