The Eurasian lynx was exterminated in Germany in 1850. It was reintroduced to the Bavarian Forest and the Harz in the 1990s; other areas were populated by lynx immigrating from neighboring France and the Czech Republic. In 2002, the first birth of wild lynx on German territory was announced, following a litter from a pair of lynx in the Harz National Park. Small populations exist also in Saxon Switzerland, Palatinate Forest, and Fichtelgebirge. Eurasian lynx also migrated to Austria, where they had also been exterminated. An episode of the PBS television series Nature featured the return of the lynx to Austria's Kalkalpen National Park after a 150-year absence. A higher proportion is killed by human causes than by infectious diseases.