With rising consumer concerns for animal welfare worldwide, the poultry industry is starting to let their hens roam around in bigger spaces. This shift from conventional battery cages to cage-free systems allow layer hens greater freedom of movement and a chance to engage in natural behaviors, from foraging to dust-bathing. With rising consumer concerns for animal welfare worldwide, the poultry industry is starting to let their hens roam around in bigger spaces. This shift from conventional battery cages to cage-free systems allow layer hens greater freedom of movement and a chance to engage in natural behaviors, from foraging to dust-bathing. Agriculture Phys.org – latest science and technology news stories