insect hotel for nesting wild insects which needs irregular chambers which in the city there is a lack of pieces of brick perforat

back bee bees biodiversity bole box brick bricks bugs butterflies chambers city covered design ecological ecology ecosystem entomology garden gardening hideout hole honey hotel insect insects irregular lack lawn material mesh needs nesting nestle outdoor perforat perforated pieces place protection reeds refuge roof save shelter side space stacked structure there trunk which wild wood wooden woodpile