Ciconia maguari is a large South American stork found primarily in open wetlands, marshes, flooded savannas, and pastures. It is native to South America, particularly widespread in the Pantanal and Llanos ecosystems. While it typically inhabits rural and semi-rural landscapes, it can occasionally be seen foraging in rice fields and other low-disturbance agricultural areas. Breeding takes place in loosely spaced colonies during the wet season, with nests often built in low trees or shrubs, sometimes directly on the ground if elevated structures are unavailable.

This species reaches a length of approximately 47 inches and has a wingspan that can exceed 60 inches. Adults have white plumage with black primaries and secondaries, pinkish legs, and a long grayish bill. A distinctive trait is the red, wart-like bare skin around the eyes, which becomes more pronounced during the breeding season. Juveniles lack the facial skin ornamentation and are duller in color. Ciconia maguari is a solitary forager that uses a slow, methodical walking pattern to hunt frogs, fish, insects, and small reptiles. It often spreads its wings partially to reduce glare on the water surface, a behavior observed more commonly during intense sun exposure. The species is considered locally common and is currently classified as Least Concern by conservation authorities.