Mason Bees are docile and safe with children and pets. They are excellent pollinators of fruit trees, raspberries and early strawberries and are fond of a range of flowers and tree blossom. This nest box is supplied with 29 individual tubes, 2 sets of screws and plugs for mounting and full instructions for siting your new box and caring for bees. Nesting Once a female has chosen a nest, she will return laden with yellow pollen carried on the dense hairs on the underside of her body. Occasionally you will see her carrying a pellet of mud to the nest between her jaws and braced against the horns on the front of her head; this is a clear indicator that the female is laying eggs within the nest tube. Each tube holds up to 10 cells. Each cell has its own store of pollen for the growth and development of the larva inside and is separated from its neighbours by a wall of mud. The appearance of a \"mud plug\" at the entrance to the tube indicates a completed nest. The females will continue th...