Hens go broody when you don’t want them to… and won’t go broody when you do. 
I have 6 Tolbunt Polish eggs that were shipped that will be going into lock down in 3 days….I have been incubating upright in an egg carton slightly tilting and turning the eggs. ALL air sacs and development of the 6 that have made it look good so when I go to put them in lock down (or now) should I remove them from the carton and lay on their sides or keep them how they are??
