I bought 5 pullets that are 5-6 months old 3 laid and 2 are close, I only like to buy hens that sometimes, or frequently go broody, but i am getting mixed breeds so that's a bit hard. so the farmer that i bought them from hatches his chicks with an incubator will the hens go broody or will they not know what being a broody hen is or is it just instincts? and one more question is it possible to tell if a this breed is prone to go broody or do i have to know the breed?