After his retirement in 1966, Barks could at last spend his full time on painting - and he did not cease to do so for the next 30 years.
Motifs used more than once
Barks used some motifs more than once in only slightly changed form for his Duck oil paintings. Often these were based on particularly popular comic-book covers.
Famous Figures of History as They Might Have Looked Had Their Genes Gotten Mixed with Waterfowl
Between 1978 and 1980, Barks focused on caricaturing famous figures of history, mythology, and popular culture. All in all he created more than 50 small-scale watercolors and about half a dozen oil paintings.