a couple of months ago my oldest chicken died(from old age ). i only had one chicken left so i got 7 more chicks from my local feed store. i had a 95% garentee that i would get all hens but i ended up with 2 roosters. i like them more than i thought i would and i don't want to put them by themselves. the only problem is tiger(my last chicken before the chicks) is still laying eggs. i know hens have to be 14 months to start laying but how old do roosters have to be to fertalize ? they're about 8 months rite now. i have seen one of them trying to breed tiger but all her eggs are unfertalized. when should i stop collecting them and let them hatch? i don't want to end up eating a baby!