"I've been
field-testing various bluebird nest box designs to determine bird preferences...
for approximately 13 years. As I find boxes that work well, I continue to
test against new box designs... For both 2000 and 2001, bluebirds showed a
strong preference for the Gilwood Nestbox over the box that was most used in my
previous trials (NABS oval hole)."
[Kevin L. Berner,
Research Chairman, North American Bluebird Society.]

"The Gilwood Nest
Box is simple, but good nest boxes have to work in several way," says
Steve. "You need bird appeal first, the box has to be tight and dry,
it must discourage predators, and it has to be easy to work with."
Research trials over several years have proven that the Gilwood succeeds on all
counts.
[Adapted with permission from Bluebird, Journal of the North American
Bluebird Society, Fall 2000.]
