JABIRU, an American stork, Mycteria americana, found from Mexico to the Argentine. It stands between 4 and 5 ft. in height, with a massive bill and white plumage. The head and neck are bare, and black and red in colour. The Old World genera Xenorhynchus and Ephippior hynchus are nearly allied to the true jabiru, but the head and neck are feathered. Less closely related are the adjutant birds (q.v.).