<http://schema.org/keywords>
"Faucon cr\u00C3\u00A9cerelle, Nederland, Zeeland, bird, bird of prey, common kestrel, falco tinnunculus, kestrel, nature, raptor, roofvogel, torenvalk, wild, wildlife, Natuurgebied de Plompe Toren, The Netherlands"^^<http://www.w3.org/2001/XMLSchema#string>
<https://marketplace.500px.com/photos/25029483/common-kestrel-by-laurent-staes>