I have a broody on 2 eggs that aren't fertile and next door I have a broody on 2 which should be hatching in the next few days. The past 2 days I've had to switch the girls back to their correct nest box. I'm worried it's a little late in the game for a new mama to set on eggs almost ready to hatch. Why are they doing this? Are they messing with me because it's my first time?