The migration of Bakhtyar nomad starts every year in special places where this nomad live in Khoozestan; this kind of shift happens when the weather gets warmer.
Migrants finally settles in Chaharmahal-o-Bakhtyari,Isfahan and Lorestan after several weeks. The Bakhtyari nomads migrate to the green mountainside of khoozestan on Ordibehesht month(May).