The jabiru (Jabiru mycteria) is a large stork found in the Americas from Mexico to Argentina, except west of the Andes. It sometimes wanders into the United States, usually in Texas, but has been reported as far north as Mississippi. It is most common in the Pantanal region of Brazil and the Eastern Chaco region of Paraguay. It is the only member of the genus Jabiru. The name comes from a Tupi–Guaraní language and means "swollen neck".
The jabiru is the tallest flying bird found in South America and Central America, often standing nearly the same height as the flightless and thus much heavier greater rhea. For the continent, it also has the second largest wingspan, after the Andean condor (that is, excluding the great albatross occasionally found off the coast of southern South America). The plumage is mostly white, but the head and upper neck are featherless and black, with a featherless red stretchable pouch at the base. The sexes are similar in appearance but the male is larger, which can be noticeable when the sexes are together. While it can give the impression of being an ungainly bird on the ground, the jabiru is a powerful and graceful flier.