I cannot for the life of me remember when I stuck eggs under one of my broodies. They are turkey eggs and I have never candled them I have just let her be. I know I put them under her before I put my eggs in the bator they are due on the 21st. Today while making my rounds to feed everyone she came off briefly to eat drink and poo and I could see the eggs rocking...How close to hatch do they start rocking???