The cages that the birds were normally kept in allowed each bird to have about half a page of A4 amount of room each, those kept with other birds often didn't do to well as the birds would peck eachother etc. If they've got enough room to move around freely etc then its not a cage, if they are...
Its tricky with titles.
In England, you cannot have caged birds anymore, so some farmers took the cages out of the barn and they become 'barn hens', I rehomed some ex-barn hens and the came looking exactly like the ex-batts, free range if it means they are not fenced at all is not good for the...