Just six weeks old at the time, Rosa was likely a runaway or castaway from an egg-laying operation. At many commercial egg farms, hens like Rosa are forced to lay about their own weight in eggs every 25 to 30 days - a burden so taxing on their bodies, they usually don't live very long.
"You can only imagine what that does to them," Grillo notes. "It causes all kinds of internal problems. Egg-laying destroys their bodies at a very young age."
"The eggs they lay is a function of intensive selective breeding, so regardless of where or how they are raised, they can't control this. I often use the expression, 'they are prisoners in their own bodies.'"
And sure enough, Rosa bore the telltale signs of life under a factory yoke.
She was weak, likely the runt of the flock - and she had a serious spinal deformity.