This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Meyers sa. swimming birds palmipdes Schwimmvgel Wildgans Anser ferus Art Gnse Gnsesger Mergus Merganser Art Sger Ringelgans Bernicla torquata Art Gnse Hhnergans Cereopsis NovaeHollandiae Art Gnse Singschwan Cygnus musicus Art Schwan Meyers Konversationslexikon etechnik uniulm de html Bibliographisches Institut PDold extract