Solution:Great Hornbill - Vulnerable. Great Hornbill (Scientific name : Buceros bicornis) is a bird species found in the Indian subcontinent. Asiatic elephant - Endangered. Blackbuck - Least Concern. Nicobar Pigeon - Near Threatened. The IUCN (International Union for Conservation of Nature) Red List divides species into nine categories: Not Evaluated, Data Deficient, Least Concern, Near Threatened, Vulnerable, Endangered, Critically Endangered, Extinct in the Wild and Extinct.