Clutch of eggs from Red-backed Shrike with a cuckoos egg to the right. From the book of my own: Boken om Göken (The Book of Cuckoo), Bokförlaget Atlantis 2004. www.atlantisbok.se

Meteorite impact outside Greenland 3.8 billion years ago. Natur i nord, Nordiska ministerrådet 2003.

Geologists drilling in a bog. Geology, National Atlas of Sweden 2002

Common tern. Artarken – threatened and vulnerable species in the area of Stockholm. Publisher: Stockholms Miljöförvaltning.

Diversity in a small water-course. Greener Forests, the National Board of Forestry.

Refind of ring marked bats. The geography of plants and animals, National Atlas of Sweden 2002.