Hi! First, I would like to thank Back Yard Chickens members for being around! I am new to raising chickens, and your site has been a wealth of information. Between reading the forum and looking at the pictures, I think our family has settled on a nice little setup for our lovely little hens (see picture). I built a coop that is mostly stationary (wheels can be attached to move it to a sunnier spot in the winter/cooler spot in the summer) and a pen that is mobile (with wheels). On rainy days, I leave the pen next to the coop and the pop-up door allows them access to the pen, while on other days I move the pen around the yard so the hens have access to bugs and greens. Every late-afternoon, I roll the pen back up to the coop so they can sleep inside. Everybody seems happy with this setup. Here's my newbie question. Our hens (Buff Orpingtons) are about 18 weeks old, so we are anxiously awaiting the appearance of our first egg. I usually let the chickens into the pen by 9 am and move it to a new section of lawn. The coop has a nest box in it, but I'm wondering if I should add a nest box to the pen. I'm concerned that once they start laying I will inadvertently move the pen away from the coop before they have a chance to use the nest box, and they will end up laying on the ground in the pen. Do chickens usually lay first thing in the morning? Weight isn't too much of an issue with the pen (I feared it would be at the start, but the wheels make it quite easy to move around) so I was thinking of doing something easy like attaching a milk crate to the pen to act as a secondary nest box. Are there any drawbacks to doing this? Thanks for your insight.