Take a look at this birdhouse designed by Sebastian Herkner for Radius.

Showcased at the Ambiente Fair in Frankfurt last month, Herkner's design can be fixed easily with a strap to trees or columns, removing the need for nails, hooks or screws, which could potentially damage trees.

Manufactured via a traditional aluminium compression process and with a circle of larch wood as the little house facade, its materials are as simple and honest as the design.