Kaj Kristian Stenvall (born 25 December 1951 in Tampere) is a Finnish artist who became internationally famous when he began his career in 1989 for painting what his site describes as “a very familiar looking duck.
Found them here.
“The duck is more of a symbol; the material of an intermediary; and a symbol of Man. The character illustrates the dilemma of being human. The duck, as such, doesn´t symbolize anything to me personally. It is used as a catalyst in the process of how it will be interpreted in the eye of the beholder.”
Found them here: http://www.kajstenvall.com/html/site_eng.html