Our April 24th hatched pullets are driving me batty. A few weeks ago 3 of the 8 started leaving their large fenced (5') yard. Every day I would find them outside the fence and would open the gate and chase them back in. They weren't getting UNDER so they must be going over. I looked everywhere for secret nests and found nothing. Then that behavior stopped. Today, 2 of the repeat offenders did it again ... and this time a different 3rd joined them. I heard the egg song and went out to the coop to discover empty nest boxes and that new 3rd bird, losing her mind racing along the back edge of the fence. Again, I opened the gate. This time they all raced back in. (I confess, I did toss out scratch for the good ladies who stayed behind, which may have been incentive for the others!) Our coop has plenty of next boxes (8). Currently we have 3 known laying hens (none of the above) who use the boxes reliably. In recent weeks the "practicing" pullets have been digging nest-like craters in the coop floor shavings every morning. Do I need to put everyone on lockdown for those April girls to get the idea that eggs belong in the coop? I have no idea if they are really laying though they've had dark red combs for months. Seeking advice from those in the know! Thanks in advance!