posted 13 years ago
I kinda like this idea. I see where you are trying to stack animals at different levels.
I don't know where the "pregnant rabbits are loners" thing comes from. I keep 8-10 does in a colony, and they make their own burrows, and often share burrows for kindling. Some can be a bit territorial, others not so much.
You'll have to bury the fence to prevent the rabbits from escaping, and I'm not sure what climate or size you are talking about, but even for one rabbit, it'll have to be pretty big to prevent overgrazing. Figure at least 10 square feet per rabbit per day. If you live in a fairly wet environment, you might only need 30-60 days for the vegetation to recover. In my area, it takes 9 months, so I would need at least 2700 square feet per rabbit.
The man who designed that underground burrow "cell" is Alessandro Finzi, from Italy. I've talked with him via email, and he is a super nice guy. He has a book in Italian (L'allevamento ecologico del coniglio, Edagricole, Milano, Italia, ISBN 978-88-506-5397-6) that describes different applications of that "cell". They did test it in a colony setting with 2-3 does penned together with 2 cells for housing. His conclusion was that cages were better, and it was more efficient to cut and bring forage to the rabbits, rather than allow them to graze. In cages, they average more than 40 kits weaned per doe, whereas in the colony setup, they were averaging 40 kits per COLONY.
I've been able to average 30+kits a year per doe in my colony, but I will be converting to cages with the underground cells, mainly from a management standpoint. It is really hard to control certain things, like feed, for each doe in a colony. I've had issues with does becoming too fat and not breeding, but by feeding them as a group, it has been difficult. Another issue is snakes. I've had to kill 3 big snakes within a 3 week period, this year alone. They love my baby rabbits, and I've had them wipe out entire litters.
The other issue that comes up is disease. Quail should not be housed with other birds, and pigeons could potentially infect your quail.
Also, poultry manure is bad for rabbits. I think it is because it is very acidic, but it can give them sores and other issues. So, maybe some sort of collection trays under the pigeon roost or something that addresses this issue.
You can also put one-way doors on the pigeon roost to capture them.