I have looked and looked at quail cage designs. It seems no two are alike. I like the battery style cages that you stack upon each other the best. I can't seem to find a good "blueprint" so it looks like I am gonna just have to wing it unless one of y'all knows where one is online. One of the things I can't seem to figure out from looking at all the pictures and videos is how tall does the slot at the front of the cage have to be to let the eggs role out and not allow the quail to escape. If one of y'all could answer that for me I sure would appreciate it. Any other tips or tricks for a battery style quail cage would be very helpful. I have built some rabbit cages, but this is just a little bit more complicated. Thank you.