The battery cage system, commonly used in the poultry industry, has been a subject of intense debate and controversy. This housing system is predominantly utilized for egg-laying hens, confining them in small wire cages with limited space and minimal ability to express their natural behaviors. Advocates argue that battery cages provide a cost-effective means of housing large numbers of hens, while critics raise concerns about the welfare and ethical implications of this system. This article delves into the key issues surrounding battery cages for poultry and highlights the welfare and ethical concerns specifically related to egg-laying hens.