How long do chickens live?
Reference.com says 5–7 years is expected on average, but that pet chickens can live closer to 10 years.
Countryside Daily claims that the average age is 8–15 years.
The Happy Chicken Coop says the average chicken has a life expectancy of around 3–4 years due to their vulnerability to predators and diseases. However, well cared for backyard chickens can live to around 7–8 years.
My Pet Chicken says that backyard chickens live to be about 8–10 years old, but it’s possible for a chicken to live up to 20 years old!
Matilda, a Red Pyle chicken who acted as an assistant for magician Keith Barton, lived to be 16 years old (died in 2006) and was certified as the World’s Oldest Chicken by Guinness World Records. She was the first chicken to receive that designation.
The current oldest living chicken is Muffy, who died in 2011 at age 22, according to the Guinness site. She was a Red Quill Muffed American Game chicken belonged to Todd McWilliams from Maryland, USA.
Naturally, this will depend on the conditions under which they’re kept, as well as hereditary factors, such as breed and feeding management.