We have had our birds about 2 and 1/2 months. We have 3 black crested Marans and 1 Dominique, but only 1 bird is laying eggs consistently, and the Dominique maybe once a week.. They all are about a year old. I put some plastic eggs in their boxes this evening, someone told me to try. Has anybody come up with a strategy to get egg production on from all your birds?