Pollarded willow trees are a feature of cultural landscapes, especially of traditional used pastures and open, riverside grasslands. Sometimes they are described as mystical elements of foggy landscapes,somewhere between earth and water. In fact their old trunks, made of bark, hollows, dead and living wood, are valuable wildlife habitats. They form niches for bats and hole-nesting birds, fungi and insects, above allother representatives of biodiversity. Pollards crowns, round in form, expanded in diameter, and often oddly formed when they are getting old, additionally provide shelters and nesting sites for birds like geese or the white stork. Pollard trunks are cut regularly at 2-3m height in an interval of 1-15 years. Regenerated top shoots once were used for baskets, animal fodder and firewood. With the declining of traditional land use forms, many willow pollards became neglected, vulnerable to wind damage and often broken down or apart. A local nature conservation group in Low...