Helgoland is Germany's only island in the open sea and the country's sole breeding place of ocean going birds. This title is the result of systematic observation, investigation since the 1840s.
Reviews the occurrence of all 426 species recorded on the island. Text is in German but every chapter and all species accounts are supplemented by an extensive English summary. All bird names are in German, English and Latin.
Taal Duits Pagina's 629 Illustratietype Kleurentekeningen, Kleurenfoto's