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Great Hornbill with the scientific name Buceros bicornis is a large bird of the hornbill family.
They are also known by other names like Great Indian Hornbill or Indian horn bill or concave-casqued hornbill or Great Pied Hornbill or Asian Hornbill.
This bird is found in various forests of India, Nepal, Sumatra and Malay Peninsula. This hornbill bird with the large bill is a state bird of various states like Kerala and Arunachal Pradesh of India. The quick classification of Great horn bill is as below,
The casque is hollow and is believed to be the result of sexual selection. They have high pneumatized bones with hollow air cavities. Male hornbills tend to indulge in aerial casque butting, with birds striking each other during flight.The flight has stiff flaps followed by glides.