This is an actual monster, some sort of rodent-like creature with a dinosaur beak. A tipster says that there is "a government animal testing facility very close by in Long Island," but unless the government is trying to design horrible Montauk monsters that will eat IEDs and fart fire at bad Iraqis, we're not sure why they would create such an unthinkable beast. Our guess is that it's viral marketing for something.
Unknown Country comments here.
Meanwhile, take a look at this.