書誌事項
- タイトル別名
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- Stomach analysis of 12 species of Japanese hawks
抄録
Stomach contents of the following 12 species, 202 individuals of hawks collected by the sinior author during 1924-1937 in nothern part of Japan were analysed by the junior author: Falco peregrinus(5), F. columbarius(6), F tinnunculus(13), Buteo buteo(57) Spizaetus nipalensis(6), Circus aeruginosus(5), Accipiter gentilis(14), A. nisus(41), A. virgatus(23), Milvus migrans(15), Pernis apivorus(12), and Butastur iudicus(6), <br>The specimens were collected throughout the year but more in winter except from some buzzards, goshawks, sparrow-hawks, honey buzzards and buzzard-hawks, the last two being summer visitors.<br>The result can be shown by the table below:<br>It is to be noted that although many passerine birds are taken by these hawks, the Tree Sparrow, which is the seasonal pest to rice crops, far more outnumbered other species; for example, it occupied 73% of the diet of Sparrow-hawk, Accipiter nisus.
収録刊行物
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- 山階鳥類研究所研究報告
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山階鳥類研究所研究報告 5 (1), 13-33, 1967
公益財団法人 山階鳥類研究所
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詳細情報 詳細情報について
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- CRID
- 1390282680017232256
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- NII論文ID
- 130003572978
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- ISSN
- 18833659
- 00440183
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- データソース種別
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- JaLC
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- CiNii Articles
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