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

著者: Cory M Shoemaker; Richard S Phillips
版本/格式: 文章 文章 : 英语
资源:The Wilson Journal of Ornithology, v123 n1 (03 2011): 185-187
其它数据库: 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  再读一些...
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文档类型 文章
所有的著者/提供者: Cory M Shoemaker; Richard S Phillips
ISSN:1559-4491
语言注释: English
专有的标识符 4668539879
注释: 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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