I have 7 girls with 3 boys and they are very active.... I have had great fertility rates as well. I just heard back from one that out of 12 eggs only 2 did not develop and hatched 6. The others did not make it out of the shell. These will ship out Monday morning. They all carry the crested gene but can not guarantee you will get a crested chick. The box will be marked fragile hatching eggs as well. The first picture is one that I received of babies that were just hatched from my eggs.