I catch and raise pigeons. The most expensive part is the traps and materials for the coop, you are better off buying traps instead of messing around with wire. I tried building a couple but by the time I finished I had spent just as much money, more time, and the product was not as good as someone who is set up for this. We did build our own coop, a small walkin probably 10x4x6. I keep anywhere from a couple to 25 easily. Water and some chicken scratch is all you need. Probably cost me 75 cents per bird per mo. I occasionally put gravel on the floor for their crops-which I get from the tops of ant beds. The main concern is predators-coons, skunks, fox, and whatever else can claw their way in. Make it sturdy and use small chicken wire where a coon can’t get their hands in. One night a coon killed 7 from the outside, he ate one thru the chicken wire, they are very driven to have their way. Buy a couple of leg traps and place around coop at night. Good luck. It’s worth it and kinda fun.