Nest boxes are critical in maintaining healthy rabbits and preventing rabbitry problems. Properly designed and placed nest boxes encourage natural breeding behaviors, provide good airflow for the doe and kits, protect against drafts, and allow easy access for cleaning. They also help to keep does from pulling their fur to line the nest, which can lead to health problems. Nest boxes should be made of sturdy materials such as wood or metal, and should be large enough to comfortably accommodate the doe and her litter. The opening should be just big enough for the doe to enter, to help keep out drafts. Nest boxes should be placed in a quiet area of the rabbitry, away from loud noises or sudden movements that could startle the doe and cause her to abandon her litter. By providing well-designed nest boxes for their does, rabbit breeders can help to ensure the health and safety of their animals.