You had posted in your thread a few days ago that they were approximately 6 months old, correct? They look quite close to laying....you'll simply need to be patient and they will soon be filling your basket with eggs.
Who's birds are they? I know before you had mentioned them as your birds and how much your son was looking forward to eggs - surely that alone would be argument enough against your grandfather (or is it your son's grandfather) taking the liberty of culling them for having not yet matured. It isn't as though they aren't laying by choice, they simply aren't quite ready yet.