This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
PaleognathNeognath. Skulls of Paleognathae and Neognathae showing position of vomer Derivative of public domain images from archive org page here archive org page here Derivative by Shyamal original images by Frank Beddard Bowdler Sharpe Bird skull comparisons
Page 2023 Free-images.com. All images are Public Domain