This guide is based on wikipedia's list of birds of Germany with accidentals removed to keep the guide under 500 entries.
The Little Grebe (Tachybaptus ruficollis), also known as Dabchick, is a member of the grebe family of water birds. At 23 to 29 cm in length it is the smallest European member of its family. It is commonly found in open bodies of water across most of its range.