Jersey Giant chickens can fly, but not very well. Their large size makes it difficult for them to leave the ground. And a Jersey Giant attempting to aviate is not an elegant sight! The responsible chicken raiser must help accommodate Jersey Giant chickens and their lackluster flight capabilities! Like all chickens, their instinct is to roost at night, but they cannot fly high or reach lofty perches. It is vital to provide lower perches or a series of steps so your Jersey Giants can roost at night.