English: « Vultur pondicerianus » = Sarcogyps calvus (Red-headed Vulture) - head
Français: « Vultur pondicerianus » = Sarcogyps calvus (Vautour royal) - tête
Date between 1830 and 1832
Source Illustrations of Indian Zoology - volume 1
Author Thomas Hardwicke (1755–1835)  
Source: https://commons.wikimedia.org/wiki/File:Sarcogyps_calvus_Hardwicke.jpg

The red-headed vulture (Sarcogyps calvus) is also known as the Asian king vulture, Indian black vulture or Pondicherry vulture. It is mainly found in the Indian subcontinent, with small disjunct populations in some parts of Southeast Asia. It has a prominent naked head: deep-red to orange in the adult, paler red in the juvenile.