The production of eggs and chicken meat raise questions of humane treatment as chickens are capable of living and growing in extremely cramped conditions. Attempts by one jurisdiction to regulate conditions chickens are grown in and eggs are produced may be contested by other jurisdictions where eggs are produced more cheaply but in less humane conditions.
Gradations in space
A colony cage is a modern enclosure somewhat like an old-fashioned chicken house which contains a small group of chickens with a bit over 100 square inches per bird. A battery cage, the industry standard is a very small cage containing one chicken with about 67 square inches per bird. Free-range includes a situation where chickens have some freedom to forage naturally.