The aluminum housing protects birds year-round and attaches to trees with a fastener and lashing strap that does no damage to the tree.  Photo 3 of 7 in Birdhouses to Complement Your Modern Home by Claire Andreas

Birdhouses to Complement Your Modern Home

3 of 7

The aluminum housing protects birds year-round and attaches to trees with a fastener and lashing strap that does no damage to the tree.