Egg-laying hens in the United States number more than 459 million. Of these millions of birds, 97% are confined to “battery” cages, tiny cages roughly 16 by 18 inches wide. Five or 6 birds are crammed into each cage, and the cages are stacked in tall tiers. As many as 50,000 to 125,000 battery hens, in sheds with minimal light, strain to produce 250 eggs per year, ten times the number of eggs they would produce in the wild.
For more wild facts about hens, go to bornfreeusa.org.