I have a broody EE hen who has been sitting on random mixed breed chicken eggs approx 2 weeks. I found someone local who have guinea keets hatching and prob available on Sunday. Can I keep them in a brooder until the eggs hatch then put them under her or will they be too big? I have 1 guinea hen I recently adopted who was raised with chickens. I would like her to have friends that "understand" her. She thinks she's a chicken. Lol