Joonas Mikola is known for creating different forms of graffiti, such as 3D graffiti, that the birdhouse made in concrete and meant to be hung under for example a bridge, is an example of. For a long time the birdhouse was placed in a birch on the yard, but after the tree died, a new place for the birdhouse is yet to be found. The birdhouse is made of concrete and steel and weighs about 8 kg.