I just got my laying hens on Friday of last week, but the lady I got them from off of Craigslist says they were laying prior to selling them. I know they need to settle in, so I'm being patient. However, today they managed to get out of the pen through a crack in the door that had been left open, so I find them roaming the yard (no big deal), but one was on the side of the fence digging a concave in the dirt and kicking dirt up and off the sides while laying down. The other went back to the pen, but I left it open and she soon returned to help her with her digging. Not sure if this is egg laying behavior, or if they are just enjoying the dirt? They have a pen with plenty of dirt, but I haven't seen this behavior inside of the pen. They do have nestboxes, but only go to them at night.