There is a wild population of African rose-ringed parakeets,Stefanie Wegener: Verbreitung und Arealnutzung der Halsbandsittiche (Psittacula krameri) in Heidelberg, published by: Ornithologische Gesellschaft Baden-Württemberg e. V., Ornithol. Jh. Bad.-Württ. 23: 39–55 (2007) and a wild population of Siberian swan geese, which can be seen mainly on the islands in the Neckar near the district of Bergheim.
There is a wild population of Af,rican rose-ringed parake.ets,Stefanie Wegener: Verbreitung und Arealnutzung der Halsbandsittiche (Psittacula krameri) in Heidelberg published by: Ornithologische Gesellschaft Baden-Württemberg e. V., Ornithol. Jh Bad.-Württ. 23: 39–55 (2007) and a wild population of Siberian swan geese, which can be seen mainly on the islands in the Neckar near the district of Bergheim