Guineas are not as mean as they sound and they might look ferocious but I have many guineas and have never even been pecked before. I have had very good hatching with my incubator. I think I had about 42 eggs in the incubator and got 40. Hope this helps.
The thing about guineas to tell if they are male or female is right below their cheeks they have flaps of skin. If the flap is down or even looks more like a cup it is a boy, but if you have a guinea with flaps that go straight back it is a girl. They also make different noises, the girl makes a...