Artist's book by Dibbets, published jointly by König and Seth Siegelaub. Text by Dibbets in English, French and German. "At the beginning of March, 1969, I decided to change a robin's territory, so that the bird would fly and control my sculpture-drawing. This sculpture-drawing can never be seen in its entirety; only through its documentation can the viewer reconstruct its form in his mind. In order to achieve this -- I only suspected it was possible -- I read a number of books (among others: Robert Ardrey, The Territorial Imperative ... and David Lack, The Life of the Robin ... until I had gathered sufficient insight into the possibilities ..."