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.
The average lifespan of first year birds is 1 - 1.5 years. First year birds have a mortality rate of 60 - 75 percent and adults have a mortality rate of 50 - 60 percent. For any songbird the first year of survival is the most difficult. If these birds survive their first year they can live on average 4 - 5 years. Predators include: hawks, snakes, squirrels, cats and hunters.