Thank you all for your help and advice in giving fertilised eggs to broody chooks. Out of 12 eggs 7 have hatched successfully over the last 2 days, 1 chick hatched but has since died, 1 egg got broken in the first week, 1 egg seems to have disappeared and 2 eggs remain unhatched at this time. I'm very excited. The chicks are Lavender Araucana's so I'm hoping that some of them turn out to be hens at the moment the are absolutely gorgeous.