Review on Pack Vision Breeding Box by Tammy Hines

Great design concept makes the birdhouse easy to clean. However, the birds are used to wooden birdhouses, so they don't use this nicely designed plastic box for its intended purpose. I put two in two cages and then a wooden one in the third cage. Connected pairs in cages with plastic boxes play indoors and outdoors, but do not mate, and the pair in the 3rd cage performed all the duties of future parents. I'm wondering if the manufacturer can offer any advice on how the bird can tell that the plastic box is actually serving as a birdhouse.