I had a guy buy chicks from me because his hatch rates weren't great. He had a really fancy setup and expensive incubator. When he saw my 50+ year Styrofoam box of an incubator I bought second-hand, he just couldn't believe it. FWIW, it has a fan, circulates air and keeps the temperature...
Totally right. Birds have been doing this for millennia and all they really need to do is be warm enough. Just make sure your incubator keeps a steady temperature: doesn't spike or drop. A separate inside thermometer/hygrometer is key and I like the Govee products for price and quality. You...