I arrived up the field at 8:30 to discover that the new chick...Dash... had decided to go for a walk and his poor mum (Sensible Hen) had left the other eggs to look after him. Anxious Hen had then left HER eggs to sit on Sensible Hens eggs. Anxious Hens eggs were pretty cold when i got here and i am not sure what to do so i currently have them in my (voluminous) bra which os abput the warmest part of me. Is it worth putting them under the sitting chicken? How soon do they die if not kept warm?