15 years! and they really look good. Do they still lay eggs? I just can't seem to get one to live longer then 9 years. I've had several get to be 9, and then they die. I had one hen that was 9 and in really good health, only she started to have rooster characteristics. She grew spurs, her comb enlarged, and she began crowing too. One night I forgot to shut up the chickens, and something killed 3 of my Roosters and her. I do have a half leghorn hen that is 9 this year, she's in good health, and is still laying an egg every once in a while. We'll see if she makes it to 10.