One of my Silkies disappeared about 3 weeks ago. A few days later I discovered her behind a bale of hay, which I hastily replaced as she was setting eggs. I didn't mark the date on a calendar, so I'm not sure exactly when all this started. So, I took 4 of the 10 eggs and candled them today. I have no idea whether they're viable. Two look pretty much like they're doing nothing, but the yolks of bantie eggs are so big compared to the total eggs size that they take up a good portion anyway. So now I'm in a dilemma. Do I let her keep setting? Or do I get her some RR chicks, newly hatched, that I saw for sale? I'd love to think I'd have Silkie chicks--even one--but I'm not sure my flip-footed Silkie rooster is able to perform the task. I've seen him attempt it, seen the hens assume the position, but none of the eggs I've gathered ever looked fertile to me--but then, that was quite a while ago. How much longer should I wait before deciding to throw in the towel on these eggs?