Here are 33 reports of decapitated animals found in New York City parks from 2010-2014. Obtained via FOIL request from the City of New York Parks & Recreations Department for "all records related to reports of decapitated animal corpses and animal heads found in New York City parks between the years 2010-2014." I requested these documents while reporting this story for New York Magazine on goat heads that keep turning up in Brooklyn: http://nymag.com/daily/intelligencer/2015/03/mystery-of-the-prospect-park-goat-heads.html