This book shows a database of 154 observations of Great Grey Shrikes who had lost their way and have been sighted in countries where they rarely appear. These observations of “digressions” have been collected from various scientific sources dating from 1890 tot the present day. An observation consists of a date and a location. For each sighting the artist chose a postcard that corresponds to the time and location observed. By the addition of a postcard the data gains a different significance.