Okay, So I have this Idea with my coturnix quail pen Im gathering supplies for. is a like a shelf that holds these pens, And each pen can come off the shelf for transport, or moving/cleaning. than it come come back on. aka slide off. than there is a transporter bottom for it, due to the the floor for the quail going to be wire. I just need to know how much space should I give 5 of these quail. Their for breeding..... If you could help me with this small issue, I would me glad. Also what do you think of this Idea?