Observation of Ground Roosting by American Crows (文章, 2011) [WorldCat.org]
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Observation of Ground Roosting by American Crows
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Observation of Ground Roosting by American Crows

作者: Cory M Shoemaker; Richard S Phillips
版本/格式: 文章 文章 : 英語
資源:The Wilson Journal of Ornithology, v123 n1 (03 2011): 185-187
其他資料庫: WorldCatWorldCat
提要:
Communal winter roosts of American Crows ( Corvus brachyrhynchos ) often occur in urban areas and may number in the thousands of individuals. We documented the distribution of urban roosts of American Crows in central Ohio and, on 12 January 2010, we observed a roost of ∼2,500 individuals with ∼250–300 birds roosting on the ground. The ground roosting birds remained stationary for the entire  再讀一些...
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文件類型 文章
所有的作者/貢獻者: Cory M Shoemaker; Richard S Phillips
ISSN:1559-4491
語言註釋: English
專有的識別號: 4668539879
註釋: Short Communications
Department of Biology, Wittenberg University, Springfield, OH 45501, USA
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摘要:

Communal winter roosts of American Crows ( Corvus brachyrhynchos ) often occur in urban areas and may number in the thousands of individuals. We documented the distribution of urban roosts of American Crows in central Ohio and, on 12 January 2010, we observed a roost of ∼2,500 individuals with ∼250–300 birds roosting on the ground. The ground roosting birds remained stationary for the entire observation period of ∼45 min indicating this location was not a stopover site. This behavior may increase thermoregulatory benefits during cold nights assuming decreased predation threats in urban environments. We suggest urban ground roosting behavior by crows may be adaptive in colder environments.

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