I'm still a bit stunned to learn about chicken/rooster longevity. Figure I am 69 years old and my chickens may darn well out live me! Hadn't figured on that. I have two dogs (Dachshunds) and they are 9 and 10 so I may make the rest of their life span. The chickens are less than 2 yrs old, the rooster is about the same. My aging in people and animals gets more complicated than you might think at first blush!