I have a few questions real quick. My dad and I have had pigeons on and off since I was a little kid and he raised them as a kid as well. We are going to getting back into having pigeons shortly (hopefully I can get my husband into it!), and we're trying to decide what we're going to do with our coop. Our coop is actually the lower half of a barn. Two sides are made of stone and the other two are wood. It's built into a hill, which I think will help regulate temperatures. We always used ground corn cobs for our floor covering but I'm thinking about using sand. I think it'd be easier to clean (almost like a cat litter box?) and help drain any moisture that gets into the barn sometimes during a lot of rain or the snow thaw. Has anyone else used it? Also, what do you all use for nest boxes? In our old coop, we built a wall of them but it was impossible to keep clean so I'm trying to think of something else. We've used milk crates before, but I don't know if we're going to do that again. It's harder than you'd think to find them! That being said, my dad is looking into getting some rollers, but I'd like to get some nuns and modenas. I just can't seem to find any! Does anyone know of a good place to get birds online or in Michigan? Thanks in advance!