We have a small flock of 5 hens that are about to be 18 weeks old. Up until now we have a 16 foot run outside and the coop is in the garage. This has worked well as there is plenty of ventillation in the garage and they have learned to go there each night after free-ranging for a couple of hours. Can I keep this arrangement now that they will start laying eggs? Wasn't sure about nesting boxes in the run? or if I should confine them to the coop to learn to lay in those nesting boxes? Any help on this would be appreciated!