A bait box including a housing； a feeding location arranged in the housing and configured for a poison bait, wherein the feeding location is arranged in an air cushion in the housing so that the feeding location is accessible for a rodent from an outside of the bait box through an entry arranged at a lower end of the housing； and a separation element which defines a liquid space with a liquid within the housing when the liquid rises outside of the housing above a threshold level above which accessibility of the feeding location is not provided to the rodent any more, wherein the liquid space extends from the threshold level to the separation element and separates the feeding location from the liquid space, wherein the housing is closed air tight besides the entry so that the air cushion is captured in the housing.
