The Zoo is home to three roosters, Crosby, Stills and Nash. They came to the Zoo in April 2014, each at the age of about 9 months. They are brothers and were adopted from Lollypop Farm.
International Union for Conservation of Nature (IUCN) Red List status: Least Concern. The species in the wild has never been quantified, however.
Domestic chickens are found throughout the world in captivity.
As omnivores, these birds eat a lot of grains as well as soybeans, corn, grass, worms and insects.
All chickens are descendants from one type of bird, the red jungle fowl (Gallus gallus). They were first raised in captivity at least 5,000 years ago.
Dominance behavior is displayed by the raising of the head and tail. Other aggressive or dominance behaviors are wing flapping and crowing.
The red jungle fowl lifespan is about 25 years, but the Phoenix rooster, like many domestic roosters, can live up to 10 years.