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.
Chickens have comparatively short life spans. Some live to be 10 to 15 years old, but they are the exception, not the rule. In commercial egg production, birds are about 18 months old when they are replaced by new, young stock. It takes close to six months for a female chicken to mature sexually and start laying eggs.