If you have children and even a quarter acre, you can have chickens for cheaper than the price of a cat, almost free. People will buy your eggs unless the market is saturated. If it is, you don't need as many chicks so your feed lasts longer. They can and will eat just about anything, including random leftovers and half eaten stuff from your kids. Vegetable scraps? Sweet. Leftover ground beef? Gone. The bottom of the cereal bowl or oatmeal pan? All good. Stale bread? Yup. It's cheap too. Dude looks like he has a nice house on that property, but I've known a lot of lower to middle class people with chickens.