I would like to know how long chickens will live under good care. I haven't seen anything regarding the life spans of chickens, but am guessing it varies by breed. I have Easter eggers, Sexlinks RR's & Rw"s, a Japanese Bantam, a barred plymouth Roo, and an egger/black cochin mix. I would like to know how long they can live, especially my Roo who is a year and a half old. My roo is very tame and friendly and my good little buddy.