Tuiuiú (Jabiru mycteria) is a large stork found in the Pantanal region of Brazil. It is the only member of the genus Jabiru. The name comes from the Tupi-Guaraní language and means “swollen neck”. In Portuguese, the bird is called Jabiru, Jaburu, Tuim-de-papo-vermelho and Cauauá. The Tuiuiú is the tallest flying bird, often standing around the same height as the flightless and much heavier American Rhea. The adult Tuiuiú is typically 122–140 cm, 230-280 cm across the wings, and weighs to 8 kg.