The Marabou Stork, Leptoptilos crumeniferus, is a large wading bird in the stork family Ciconiidae. It breeds in Africa south of the Sahara, occurring in both wet and arid habitats, often near human habitation, especially waste tips. It is sometimes called the "undertaker bird," due to its shape from behind: cloak-like wings and back, skinny white legs, and sometimes, a large white mass of "hair."
A massive bird, large specimens are thought to reach a height of 150 cm (60 in), a weight of over 9 kg (20 lbs) and have a wingspan of at least 3.5 m (10.5 ft). In the last regard, it shares the distinction of having the largest wingspan of any land bird with the Andean Condor. More typically, these birds measure 120–140 cm (43–55 in), 225–285 cm (89–113 in) across the wings, and weigh 4.5–8 kg (10-18 lbs). Unlike most storks, the three Leptoptilos species fly with the neck retracted like a heron.
The Marabou is unmistakable due to its size, bare head and neck, black back, and white underparts. It has a huge bill, a pink gular sac at its throat, a neck ruff, and black legs and wings. The sexes are alike, but the young bird is browner and has a smaller bill. Full maturity is not reached for up to four years.