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Bluebirds and Tree Swallows nesting together in paired boxes

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Uploaded on Aug 1, 2010

Eastern Bluebirds and Tree Swallows often compete for nest boxes, but when they are offered 2 boxes within 10' - 15' apart they will often both nest successfully once they settle who gets which box. For more on pairing boxes and bluebird - Tree Swallow competition and relationships see: http://www.treeswallowprojects.com/tr....

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