I don't really know where to post this, but here goes. My rooster died and, a week later, one hen decided to sit on eggs. I posted, asking how long fertility lasts after the last breeding. The answer was up to 10 days. Okay, so it's been over a month since Roscoe died. I was away 2 days, so several newly-laid eggs were in the box when I got home. I cracked them for breakfast just now and every single one (3) had the bullseye thing that indicates fertility. Or is that white speck something else? Seems impossible to me, so I just had to comment.