山階鳥類学雑誌
Online ISSN : 1882-0999
Print ISSN : 1348-5032
ISSN-L : 1348-5032
短報
北海道におけるホトトギスの分布
藤巻 裕蔵
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ジャーナル フリー

2017 年 48 巻 2 号 p. 65-73

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The distribution of the Lesser Cuckoo Cuculus poliocephalus in Hokkaido was investigated from late April to early July, 1976–2016. Surveys were mainly conducted by 2-km-long line transect censusing in 993 quadrats (4.5 km×5 km). In addition, for 526 quadrats, census results obtained from the literature and spot censuses concerning the presence or absence of birds were also incorporated. The Lesser Cuckoo was distributed mainly in Hiyama and Oshima districts and the central part of Iburi district. These results indicate the Lesser Cuckoo to be a common summer visitor in these areas, and an irregular visitor in other areas in Hokkaido.

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© 2017 公益財団法人 山階鳥類研究所
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