Beyond decoration wallpaper. Encouraging ornithology through interaction, the illustrations (gathered in a simple guide book) allow you to create your own flock of birds indoors by adding them to your walls. Flocked to indulge that urge to touch textured wallpaper, you can also fill with colour if you wish. And flock / flocking proved irresistible. Touchy touchy touchy feely flocking flock of birds.