<http://schema.org/about>
"The U.S. Fish and Wildlife Service reports that as many as 91 species of the nation's birds remain on the verge of extinction or are threatened. Here are 10 bir"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/photos/10-endangered-birds-of-america/from-sea-to-shining-sea>