<http://schema.org/keywords>
"Avian, Bird, Birds of Prey, Black Vulture, Coragyps atratus, Mexico, Nature, Raptor, New World Vulture"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/38275450/black-vulture-coragyps-atratus-by-gyorgy-szimuly>