Not all sources give four hours as the guideline for priapism occurring: The duration time of a normal erection before it is classifiable as priapism is still controversial. Ongoing penile erections for more than 6 hours can be classified as priapism..
Guinness World Records (London, England) Considering that the average lifespan of a chicken is generally no more than seven to eight years, Keith and Donna contacted Guinness World Records on July 30, 2001, to make them aware that Matilda was eleven years old and still in excellent health.
How Long Will Chickens Live. Many chickens will live over 5 years, some 8 to 10 years. Occasionally I have heard of chickens living for 15 to 20 years of age but it will depend on how chickens are kept, as well as the genetic make-up of the bird. One of my older hens still enjoys a happy life free-ranging and lays the odd egg or two!