Disease and predation are problems in populations that are allowed to roam, but animal advocates argue those issues can be mitigated with proper management practicesSign up for the Rural Network email newsletterNear Lake Macquarie on the central coast of New South Wales, Belinda Stauner-Dawson is running what appears to be a chicken utopia. Her 60 egg-laying ISA Brown hens – a popular laying breed – have the run of a 1.4-hectare paddock. Each day they have access to fresh, green pasture and they come and go as they please from a chicken caravan – a trailer with a water tank,