Chicken producer Perdue Farms has been expanding the volume of free-range chickens it sells in an effort to provide a higher-quality product, as well as to boast a better lifestyle for the birds. That ...

Some farmers are wondering if it's OK that eggs sold as free-range come from chickens being kept inside. File photo: In this Oct. 21, 2015, file photo, cage-free chickens walk in a fenced pasture at ...