Our numbers are also waaaay down lately. Today we had 5 eggs from our 21 hens. It has been between 4 and 9 for the last couple of months. I suspect that 7 of the girls are just too old. We got them about a year ago from a local farm that was culling their flock in preparation for a total coop rebuild. My guess is that the flock was getting old and that influenced their decision to sell off the flock. I don't know this for sure and I'm certainly not accusing them of selling us old birds. The time we have had with them has been very valuable for us as we have been learning a lot about how to care for a flock and how to detect and treat for mites (we've had to treat them twice already and will be doing so again in the next week or so.) We have 15 chicks on order, which will be arriving in about a month and a half. At that point in time, we'll process the 7 hens we got from the local farm and we'll know whether or not they have stopped producing.