Poultry housing refers to the structures used to confine and manage poultry, while cages are a specific type of housing system used for raising poultry, particularly laying hens. Poultry housing encompasses a variety of systems, from basic shelters to more complex, climate-controlled environments, designed to optimize bird welfare and productivity. Cages, often in battery or enriched systems, are used to house birds in close proximity, usually for egg production, with varying degrees of space and features depending on the system.