Dictionnaire classique des sciences naturelles Brussels Meline Cans et Ce. 1853 Natural history Dictionaries, The illustration features two distinct bird species. The top bird displays a blend of rich browns and iridescent blue, characterized by a slender neck and a subtle crest. Its body is elegantly shaped, suggesting a graceful stance. The lower bird exhibits a striking combination of black, white, and hints of yellow on the head, complete with a prominent feathered crest. Both birds are rendered with meticulous detail, showcasing their unique features, including beaks and leg structures, highlighting their differing habitats and appearances within the avian world.