Abyssinian (northern) ground hornbill (Bucorvus abyssynicus)
One of the two present day survived species of the ground hornbills. As their Asian forest relatives, they nest in holes in large old thick trees but in the African savannah, not in the forest. They are among the largest flying birds in Africa. About 7 million years ago their relatives reached far north, where their bone remains for the first time in Europe were found near the town of Hadzhidimovo in Bulgaria.