I noticed the other day that one of my 4 year old BSL's has 1 inch spurs. Her comb isn't much larger than the other hens, and she doesn't crow or try to mount the other hens. I have no idea if she lays eggs. I have 142 hens, so keeping track of who's laying is impossible. I have occasionally noticed what may be fertile spots in eggs, but always discounted it because I "have no rooster". I have a small flock of young birds, both male and female that I will be sending to my mother's house in a couple weeks. Maybe I should include her as a bonus? I REALLY don't want fertile eggs!