Blindheims make their nests in damp caverns, especially grottoes next to underground lakes or bogs. An ideal nest rests in a cozy cavern with plenty of fungus to eat, a few fish swimming in a lake, and the comforting drip of water from the ceiling. Blindheims prefer to lead quiet and serene lives, and even when first born they emit only the meekest of vocalizations. A blindheim is born shining, and its parents cuddle over it to dim the light so as to avoid attracting predators.