When I saw Eirik Johnson's picture series of animal holes on twitter a few days ago I decided to see how many of them I had shot myself over the last ond-and-a-half year. I thought there would be more but I have no great interest in them. They are all made by rabbits or mice (??, I do have a guide to them), but when you find one it is an easy and automatic gesture to make a picture. It is worth nothing that all of these are found within the city of Utrecht.