 To be clear, they meet all the legal welfare standards, and farmers like Peter are keen to tout their welfare credentials. But these are the birds that activists will tell you are the lower welfare birds by comparison. Higher welfare birds would be free range, allowed to go outside, and would live longer too. For Peter, this isn't just about keeping costs low. This is his second sustainability tactic. In his view, growing chickens like this is the least environmentally damaging.