Japanese quail are territorial and will defend their home against intruders. If two groups of quail are to be combined, put them together in an unfamiliar cage or pen.
Housing and equipment Quail are frequently housed in rooms similar to garages. However, such rooms need to be well insulated, well ventilated and free from draughts, and must provide protection from cats, rodents and predatory birds.
Housing should be designed to ensure comfort for the birds, to make food and water readily accessible and to permit easy and effective sanitation. The adult facilities should reflect the purpose of the project. For example, if the birds are to be raised for commercial egg or meat production, then small pair-cages are suitable. Hobbyists may prefer aviaries or small deep-litter pens that do not require regular removal of droppings.