<http://schema.org/alternativeHeadline>
"Hundreds of thousands of Mexican free-tailed bats roost under a causeway in California. Our intrepid photographer shares some amazing photos from their nightly feeding."^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.mnn.com/earth-matters/animals/stories/bats-take-flight-in-seasonal-spectacle>