Cage-free is a term that defines an extent to which a set of poultry birds can roam around. In this system, the birds are kept in an indoor space, and there is an extent to which they can move around. Moreover, there are some amenities that can be provided for them to make a living more convenient. However, this depends largely on the extent to which the producer wants to explore. On the other side of the coin, in the free-range system, the chickens have more space to explore than in the cage-free system.
The chickens can even go outdoor, where they have access to dust-bathe and do some other things. In the free-range system, the chickens have access to more kinds of feeds such as grasshopper and some other insects, and this, in return, gives them more nutrients for growth. Nevertheless, chickens that are being reared for meat purposes are usually reared using the free-range system, while the chickens that are reared for egg purposes are usually on a cage-free system.