Five pictures of vultures

These are public domain images from the most excellent digital collection of the New York Public Library.
  1. Bengal vulture, illustration from the collection of Major General Hardwicke from http://digitalcollections.nypl.org/items/510d47da-9f19-a3d9-e040-e00a18064a99
  2. Egyptian vulture, illustration from Birds of Great Britain by John Gould from http://digitalcollections.nypl.org/items/510d47d9-702e-a3d9-e040-e00a18064a99
  3. White-backed vulture, illustration from the collection of Major General Hardwicke from http://digitalcollections.nypl.org/items/510d47da-9f18-a3d9-e040-e00a18064a99
  4. Red-headed Turkey vulture drawn by John James Audubon from http://digitalcollections.nypl.org/items/510d47d9-7220-a3d9-e040-e00a18064a99
  5. California Turkey vulture drawn by John James Audubon from http://digitalcollections.nypl.org/items/510d47d9-721f-a3d9-e040-e00a18064a99