So quite a while ago I got a bird house for my backyard. The bottom of it needed duo falling off, but a layer of the bottoms price stayed on. A bird has already started building a nest, and I was worried that the rest of it would collapse, killing the future eggs. So My dad decided to put clamps (on the four corners) to re attach the bottom piece to the rest of. I don’t know if the parents are going to mind that their there? There not super big, yet not the smallest. Are birds going to stop building their nest because of it? I’d also like to note it is a decorative one, made to look like a bar