Explanation:

About Hornbills Birds

• The hornbills (scientific name Bucerotidae), are a family of birds found in tropical and subtropical Africa and Asia.
• India is home to nine species of hornbills. The northeastern region of India has the highest diversity of hornbill species. 
• The Hornbill festival celebrated in Nagaland is named after the bird – Hornbill which is the most revered and admired bird for the Nagas. 
• One of the kinds of Hornbill found in India is called the Great Indian Hornbill. 
• Great Indian Hornbill- It is one of the larger members of the hornbill family, distributed along Indian Subcontinent and Southeast Asia.
• It is an important bird in many tribal cultures and rituals owing to its size and unique colour.
• “Great Hornbill” is the state bird of both Kerala and Arunachal Pradesh.

Hence option 3rd is correct.