A unique book: 180 color illustrations show the contents of nesting boxes in their original size. It not only covers the bird species that breed there but also various mammals such as mice, garden dormice, bats, and insects like bumblebees, bees, and wasps that can inhabit the nesting boxes. Even in autumn, many traces still reveal something about the fate of the brood and the events of summer. Suitable and unsuitable nesting boxes, proper placement of the boxes. Nesting aids and bird protection in the garden, bird baths and feeding, nesting boxes for biological pest control in orchards and forestry, maintenance and monitoring of nesting boxes, and preservation of natural cavities.