Vildbin likes heat and has difficulty finding places in forest and land in today's landscape. Open sun exposed sand to dig nests, there is a shortage of.
See the video above for how the project managers work for the bees and hear what is required
Two of the almost 200 species of wild bees found in Östergötland are so rare that they are only found in one place throughout the country.
Gold sand bee and silver cuckoo bee are found only in the districts of Finspång and in a stretch down Svärtinge. There Holmen Skog now builds sandbeds for them to live in.