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.
Keywords from Image Description:
Catalogue of the fossil birds in the British Museum Natural History Page BHL. Catalogue of the fossil birds in the British Museum Natural History by Richard Lydekker Page Text Illustration biodiversitylibrary org title British Museum Natural History Lydekker Richard NOTINCOPYRIGHT Biodiversity Heritage Library Check