A pest bait station including: a container including an access point giving direct or indirect access to a poison or trap location therein, the container being fitted/located above a ground/floor surface, and a ladder arrangement having a lower end below and remote from said access point and leading upwardly and directly or indirectly to the access point, the ladder arrangement including at least one climbing formation (108A, 108B); characterized in that: - the container comprises a hole defining said access point; - the ladder arrangement comprises an enclosed body leading upwardly to said access point, and having a lower end and an opposing end, said lower and opposing ends being at least partially open, and said opposing end being located within said hole; - a first said climbing formation, within said enclosed body, is spaced from said lower end of the ladder arrangement by a minimum design distance over 70mm, and said lower end of the ladder arrangement is spaced apart from the ground/floor surface by a minimum distance of 8.89cm, so as to allow a target pest to ascend to the access point from said lower end, whilst preventing non-target animals from ascending. a container including an access point giving direct or indirect access to a poison or trap location therein, the container being fitted/located above a ground/floor surface, and a ladder arrangement having a lower end below and remote from said access point and leading upwardly and directly or indirectly to the access point, the ladder arrangement including at least one climbing formation (108A, 108B); characterized in that: - the container comprises a hole defining said access point; - the ladder arrangement comprises an enclosed body leading upwardly to said access point, and having a lower end and an opposing end, said lower and opposing ends being at least partially open, and said opposing end being located within said hole; - a first said climbing formation, within said enclosed body, is spaced from said lower end of the ladder arrangement by a minimum design distance over 70mm, and said lower end of the ladder arrangement is spaced apart from the ground/floor surface by a minimum distance of 8.89cm, so as to allow a target pest to ascend to the access point from said lower end, whilst preventing non-target animals from ascending. - the container comprises a hole defining said access point; - the ladder arrangement comprises an enclosed body leading upwardly to said access point, and having a lower end and an opposing end, said lower and opposing ends being at least partially open, and said opposing end being located within said hole; - a first said climbing formation, within said enclosed body, is spaced from said lower end of the ladder arrangement by a minimum design distance over 70mm, and said lower end of the ladder arrangement is spaced apart from the ground/floor surface by a minimum distance of 8.89cm, so as to allow a target pest to ascend to the access point from said lower end, whilst preventing non-target animals from ascending. - the ladder arrangement comprises an enclosed body leading upwardly to said access point, and having a lower end and an opposing end, said lower and opposing ends being at least partially open, and said opposing end being located within said hole; - a first said climbing formation, within said enclosed body, is spaced from said lower end of the ladder arrangement by a minimum design distance over 70mm, and said lower end of the ladder arrangement is spaced apart from the ground/floor surface by a minimum distance of 8.89cm, so as to allow a target pest to ascend to the access point from said lower end, whilst preventing non-target animals from ascending.