"Bird and the Southern Sea" exemplifies Milton Avery's characteristic style of simplified forms and luminous color relationships, rendered in oil on paper laid on board. The composition likely features the artist's signature approach of reducing natural subjects to essential shapes while maintaining a sense of poetic observation of the landscape. Avery's work bridges modernism and American regionalism, using bold, flattened planes of color to evoke both the specificity and the universal qualities of the Southern coastal environment.