That would be another interesting question to gauge whether a flock has 'enough space' - whether their area is green or completely denuded of vegetation. I have been reassured that mine are OK with their space as the only denuded areas are where they have dug their big bath holes.I chose hen house and secure run. They're kept in an electric poultry netting setup + their 10*10 coop, and have access to grass due to it. The fencing was 100ft long and still retains grass despite them being on it for months without me rotating it.