This box has a special multi-layered cavity wall provides excellent insulation while also allowing the air to permeate. This makes it ideal both for hibernation in winter and for encouraging large colonies in summer. 180 hibernating individuals have been recorded within a 1FW box. There are three internal, grooved, wooden panels which can be easily lifted out for inspection and cleaning, and the same roof panel as the 1FS. This box is ideal for use on trees or other flat surfaces, and comes with mounting blocks, aluminium nails and fixing instructions.
Schwegler boxes will last decades and are very successful at attracting inhabitants. This means decades of breeding success in real life conditions. These boxes have been developed in close collaboration with leading bat workers, nature conservation organisations, government conservation agencies and forestry experts, and are backed up by decades of experience and knowledge. The high quality light-weight concrete provides insulation against temperature fluctuations, allows air to pass through the walls, and prevents the formation of condensation which often occurs in boxes made of plastic, stone or more conventional forms of concrete.
* Colour: black
* External dimensions: 38cm diameter, 50cm height
* Internal dimensions: 20cm diameter, 38cm height
* Weight: 28kg
* Material: Schwegler wood-concrete with galvanised steel hanger