Ooh, looks like I’ll get to buy more furring strips. I’m starting to develop a thing for them.But that way when you open the door, birds can fly out both sides. You can put a strip of wood on top of both pieces and screw them on. No caulk needed.

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Is it okay to put regular hardware cloth in the middle or should I use something that will obscure their sight from one another? I don’t want them stressed constantly.