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by metal posts. Unable to find suitable places to raise their young, bluebirds face disaster.
Saved by Nesting Boxes
Conservationists and bird lovers have fostered a modest comeback by building trails of nesting boxes for bluebirds. A trail may consist of any number of nesting boxes, usually placed a hundred yards or more apart. The generous spacing prevents fighting among the highly territorial birds.
Says Dr. Zeleny: “The 85 boxes of our Beltsville, Maryland, bluebird trail have yielded hundreds of healthy fledglings, dramatic evidence that the most practical way to help these azure-and-russet songsters is to supply them abundantly with nesting boxes.”
In the United States most bluebird trails lie east of the Mississippi River. Canada boosts the world’s longest bluebird trail.
87.4%