enriched cage: A type of cage in which battery hens are kept, where the birds living conditions have been improved by an increase in the size of the cage and the inclusion of perches, nests, and litter so that the bird can peck and scratch. Enriched cages will replace existing battery cages in 2012 when the EU Directive on the welfare of laying hens comes into force. However, a review of the Directive is underway, with a report expected next year. Using enriched cages helps farmers improve animal welfare and comply with regulations.