Where I live in south central Wyoming, we're considered high desert. Pretty stark, lots of scrub brush, lots of open area, some cactus, trees are mainly limited to water sources (like a river or a town). Lots of wildlife like antelope, deer, badgers, raccoons, hawks, eagles and beaver in the...
Good for you on thinking ahead Deb! You already have some great ideas.
Have you ever considered quail? I would think there would be a market for meat & eggs with them too (but I don't know your area).
Can you do some sort of solar heating for your greenhouse? Maybe you could do the tilapia...