Among all stork marabou, it is distinguished by the most impressive size. The marabou is divided into three subspecies: Indian, African, and Javanese. Here we see the African marabou Leptoptilos crumeniferus. These birds have a memorable appearance, but prosaically they often live near large landfills, where they look for food, and a bare neck and head without feathers helps to keep their bodies clean. The African marabou reaches a height of more than one and a half meters and weighs 8.5-10 kg. There is a peculiar sac in the neck area that connects to the nostrils. It can inflate and reach 40 cm in diameter. In young individuals, it is practically absent, its growth occurs during the growth of the bird. Previously, it was believed that birds put food in it in reserve, but it turned out that this outgrowth is used only during mating games and so that the bird can put its head on it at rest.