The Chough, the sole representative of the genus Graculus, resembles the true Crows in shape and colour, but differs from all of them in having the bill and feet brilliantly coloured. It inhabits Europe, Northern Africa, and a considerable portion of Asia.
The Chough is found principally in mountainous districts, and delights in cliffs, in holes of which it usually breeds ; but in Tibet it also affects buildings for the purpose of nesting. The Chough is more or less gregarious, and it feeds on the ground after the manner of the Book, and upon much the same substances.
In Gracalus the bill is very slender and curved and as long as the head, or even longer; the naral plumes are very short and dense, and the lower mandible is feathered to the same extent as the upper. This bird differs markedly from the true Crows in possessing a smooth tarsus, but it differs in no other important particular.