Quote:Not really a common thing. I had some issues when I had one roo to 15 hens, but now I keep 2 or 3 roos over 20 hens and fertility has been perfect. Do you mark your eggs? Maybe its just one hen that likes to hang out away from the group? Well they were shipped eggs from a breeder. On my last try I had blue Wheaton and some EE eggs. The EE's developed and I had all clears on the wheatons. This time I got the same thing plus some buff americauna from the same breeder and everything had some development exempt the wheatons which were all clears again ... just thought it was weird that only the wheatons had no development at all both times.