Tammy – HI -I’ve missed you.
Yes, I have 3 Gilwood (wooden) boxes and one Audubon Society box (given to me by a good friend). My blues have always used the Gilwoods except this year they decided to build in this Audubon box. I have built two new Gilwood boxes with slightly larger floor area – the originals were somewhat small I found. Most of my older original boxes were 16 square inches and specs on the Gilwood are 14.875 square inches (3.5 x 4.25 inches) My newer boxes we have modified to now be 15.93 square inches, not much difference but enough to help when there are 5 babies.
Rich, do you have eggs yet? Hope so – good luck with this nesting.