Bluebird Reference Guide
Mountain Bluebird Info
The Ellis Bird Farm
AltaVista Search for "Bluebirds"
The Bluebird Box
Bluebird Society of PA
House Sparrow Control at Your Bluebird Nesting Box
North Carolina Bluebird Society
Tonto Bluebird Trial
Prescott Western Bluebird Recovery Project
Bluebirdhollow: A Nestbox Trail in NJ
