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Indian Peafowl Feathers. Credit: USFWS

Students and Educators


Hornbill Skull
Credit: USFWS.

Hornbill Skull

Common Name: Wreathed Hornbill
Scientific Name: Aceros undulatus
Protected Status: CITES - App. II
Laboratory Section: Morphology
What’s the Story? This is a close-up of the beak of a Wreathed Hornbill. The strange-looking skulls of these birds are sometimes sold - illegally - as decorative curiosities.


  • These photos change frequently. Check back for more mystery photos.
  • These photos should not be used for identification purposes.  Detailed information to assist with selected species identification problems can be found at Publications and Identifications Guides.
  • For more information about Protected Status, view our U.S. Wildlife Laws page.
  • You may download these photos for educational purposes with credit to the U.S. Fish and Wildlife Service (USFWS), but cannot use them for commercial purposes or sell them.
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