To prevent enemies from getting in! Hornbills are curious-looking birds that live in Africa and parts of Asia. They have large bills with horny caps or domes at the base. The dome on the bill of the rhinoceros hornbill turns up strangely at the end, a bit like a rhino’s horn.

Hornbills usually makes their nests I hollow trees. The female sits on the eggs and the male seals up the entrance to the hole with wet mud to protect her from predators. The male then feeds the female for weeks through a small hole. When the young have fledged, they open up the entrance using their strong beaks and fly to freedom.

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