I haven't chimed in yet, but yes, you really need to do a lot of preparing I think. It's great that you want to get into farming, and having birds is great and is my favorite thing in the whole world to do, but you really really need to read some farm blogs or something. Yes, you could pay a vet to put a bird down, but that's really expensive, assuming you could even find a vet that does birds. I don't want to sound harsh here, but it seems like you might be idealizing this whole thing. It's not easy. Birds get sick or injured and you have to put them down. They're dirty. They're hard work. Bigger farm animals even more so. So yes, you could pay a vet to put down your birds. But then you need to give up the idea that you'll EVER make money cooking with their eggs.
I think a lot of people in here are getting startled by your questions because it seems like you've done zero research on what having livestock is really like. That's probably not true, but asking things like whether or not you should vacuum your chickens and thinking that you can build a hamster-like habitat for them including an exercise wheel makes people really skeptical - and worried. I understand that you love your birds. I understand that it's your dream to own a farm and have lots of animals. But I think you really need a lot more research and reality checks before you attempt it.
That said, don't give up. Maybe try to visit someone with chickens to see what it's really like. If you're anywhere near me, I invite you to stop in some time. The same with other animals you want to own. I don't want to chase you off or discourage you, but I think you really need to be looking at this a whole lot differently that you currently are.
Thank you for the response! I sell cosmetics. It is vastly different from farming. My days consist of studying fashion trends, future color trends, new cosmetic technologies, and also clothing trends. Actually we started looking at chickens because we saw that Urban people could keep them. We saw all kind of adorable outfits and thought that they are a very ideal pet. Having property now we debated whether or not to try to grow trees or have any kind of animal. Beautiful barn, beautiful buildings seem to be wasted not having anything to live in them. So this was our starting point. I'm still going to sell cosmetics, we'll still have the computer business, but these are very part time and wanted to add another element so that we can offer something valuable to our neighborhood. We absolutely loved hatching eggs! I'd love an opportunity to visit a farm and actually learn from someone who knows what it's all about. Thanks for the offer. Would greatly appreciate an opportunity to observe your set up sometime! Thanks!