Sure fire way to know if you have a hen. If it lays eggs it's a hen.
If it crows it's likely a rooster. Although I had a hen once that crowed. I don't mean to be critical but this article didn't help much. By the time they have their feathers, it's pretty easy to tell most breeds. I'd like some...
I was thinking about buying one of these but after reading the success rates, I'm not impressed. I have a cheap styrofoam Hova-bator and wanted an incubator that was less trouble. I have to manually turn the eggs, it has no fan and no thermometer. I turned the eggs 3 times a day and had to use...