"Oiseaux Souterrains" (Underground Birds) is a lithograph by Max Ernst that exemplifies the Surrealist artist's fascination with automatism and biomorphic forms. The work features Ernst's characteristic technique of layering and manipulation to create dreamlike, ambiguous imagery that hovers between the recognizable and the abstract. The title's reference to subterranean birds invokes the artist's interest in the unconscious mind and the hidden, mysterious aspects of nature that Surrealism sought to reveal.