山階鳥類研究所研究報告
Online ISSN : 1883-3659
Print ISSN : 0044-0183
ISSN-L : 0044-0183
武蔵陵墓地鳥類綜合調査(速報I)
シジュウカラの蕃殖状況(1959年度)
浦本 昌紀高野 伸二
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ジャーナル フリー

1960 年 2 巻 14 号 p. 60-62

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The breeding success of Great Tit, Parus major, was investigated at Musashi Imperial Tomb Area in 1959. 80 nest-boxes were provided per 50 m-grid. The number of nests initiated were 26 and the nests at which the clutch completed were 10. The clutch sizes were somewhat larger in early than in late clutches, though not statistically significant. The nest from which the nestlings fledged was only one. This very low breeding success is remarkable.

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