3 eggs
I have had hens laying on four eggs many times and have even been told by a few on here this is MADNESS, most of the time not all will hatch and you will end up with only two anyway. There was a time that three did hatch but I have learned that even if there are only two that hatch I can use chick starter, it is much easier for the parents to feed the young. It may not work for all but it worked fine for the parents that feed 3. My view is, the chick starter and plenty of water makes it much easier for either parent to get food, a little water and feed 1,2 or 3 squabs possibly 4 but I have never done that one yet. >Kevin