We have a wonderful house for our chickens and ducks they each have their own side with plenty of nest boxes, well I have a friend who visits alot of yard sales so I asked her to be on the look for a used cat litter box complete with top. Well she found me one, I cleaned it out good, just dusty then put it in the duck house at the inside door to chicken house, well now there is nothing being used to lay eggs in but that, They even wait in line to go in I've even seen 2 bantams at one time in it, so why would this be so popular when they have wonderful nest boxes? Hens are so funny. Maybe someone else has a story about what their hens like for nest boxes. My friend also found a small animal crate that I'll be bringing home this weekend, wonder if it will be the next favorite place to lay?