In Pitt's letter to Costco's CEO Craig Jelinek, he wrote, "As you know, these birds producing eggs for your shelves are crammed five or more into cages that are not large enough for even one hen to spread her wings."
"In these cruel cages, the animals' muscles and bones atrophy from years of immobilization. That's why the cages are illegal in most of Europe, and why California banned the cages by an overwhelming vote years ago," the Fury star added. "In short, cramming hens into cages for their entire lives constitutes cruelty to animals, and animals deserve better. As you know, many major corporations, from Burger King to Unilever, are getting rid of cages—and Whole Foods hasn’t sold eggs from caged hens in years."
MORE: Ryan Gosling's Letter to Costco
The letter, however, ends with both a compliment and a plea.
"I admire Costco's many positive social commitments," Pitt noted. "You've shown great courage and integrity on a range of issues. Won't you please extend that sensibility—and basic decency—to chickens? Please, will you set a reasonable timeframe to stop selling eggs from caged hens?"
The Associated Press reports that in a statement from June, the company wrote there are "vigorous debates about animal welfare and laying hens. Some, such as the Humane Society, advocate that hens be 'cage free,' and not confined in cages. Some advocate that cages are safer for hens."