A traditional portrait of a flock of beautiful Japanese red crown crane by Ogata Korin (1658-1716). Digitally enhanced from… Free Image from public domain license 
Birds at full moon (1900 - 1936) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by rawpixel. Free Image from public domain license 
Great geese in flight (1925 - 1936) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by… Free Image from public domain license 
Two geese at banana tree (1900 - 1945) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by… Free Image from public domain license