Although I call my chooks 'free range', I have had people call me out on that because they are, in fact, enclosed (most of the time, but they do break out sometimes.)
According to the Egg Producers Federation of New Zealand,
The key difference with free-range egg farming is the hens’ access to the outdoors.But my chooks live in a very different environment from commercial free range chickens. The following is just one picture of many that I found when I Googled 'free range chickens'.
The shelter provided may be fixed or portable, such as a shed, aviary, perchery or ark. In larger farms, flocks are housed in sheds fitted, which include nest boxes and perches, and birds are able to access the outdoors through pop-holes in the shed walls.
Our chicken run contains space and food for them, but also includes food for us.
So although you might not be able to see them clearly, against the back drop of bush, there is a grape vine on the fence, two avocado trees that grew up from food scraps, pear tree and apple trees.
They seem to like their home, and it's one of my favourite places, both beautiful and productive.