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    Abyssinian Ground Hornbill

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    Overview

    Hornbill is a common name for any member of a family of birds found in Africa and Asia that have large but lightweight bills. In certain small hornbills, the bills may be brightly colored. In some hornbills, the bill is surmounted by a large projection called a casque.

    Appearance

    The Abyssinian Ground Hornbill (Bucorvus abyssinicus) is a turkey-sized, dinosaur-like, black, terrestrial hornbill, with long, black bill and stout black legs. The bill of an adult male has a short, high, open-ended casque and a reddish patch at base of the upper mandible. The underwings are white. The eyes have long eyelashes and are surrounded by blue skin. On the throat, the skin is inflatable red and blue. The adult female is smaller, with bare skin entirely dark blue.

    Ground hornbills like to show off by inflating their neck bladders, waving their wings, and expanding their tails to make their presence known proudly.

    Diet

    Small groups feed in wooded and savannah areas on all kinds of animals and may join vultures in feeding on carrion. They stalk through the grass, seldom taking to the air.

    Calls

    They roost in trees, from where they deliver a deep, far-carrying, booming call just before dawn. It is said to cry gulu mpa nkuba (‘Heaven, send rain’) and God is believed to attend to it.

    Nesting Behaviour

    Hornbills are known for their peculiar nesting habits. The female nests in a hollow tree, the opening of which the female plasters over with clay mixed with saliva, leaving only a small opening. While the eggs are being hatched, the male hornbill feeds the female through the opening. The ground hornbill females are not sealed into the nest hole.

    Video Credits: Zoo Atlanta
    Image Credits: Cet-Toutunart

    References:

    1. Katya Mandoki – The Indispensable Excess Of The Aesthetic: Evolution Of Sensibility In Nature
    2. Nik Borrow, Ron Demey – Field Guide To The Birds Of Ghana
    3. Sophie Lovell-Hoare, Sophie Ibbotson, Max Lovell-Hoare – South Sudan
    4. Anthony Appiah, Henry Louis Gates – Africana: The Encyclopedia Of The African And African American Experience
    5. Regina Bendix, Donald Brenneis – The Senses

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