Build a bumblebee nest box and set it up correctly

Our bumblebees are critically endangered, and numerous species are on the Red List of Endangered Species. If you would like to help preserve these animals that are important for our nature, you could contact us Build a bumblebee nest box so that (perhaps rare) bumblebees offspring in your garden to produce:Build a bumblebee nest boxFor the Construction of a bumblebee nest box you will need five boards measuring 40 x 40 cm, 2 cm thick, which will form the bottom and side walls. A board measuri...