Merrill notified Stephen Barcelo, a self-described cryptozoologist who investigates sightings of unknown creatures. He also runs the Cryptozoology and Paranormal Museum from his home.
Barcelo took a cast of a footprint the animal left in Merrill's yard.
"There's a lot of people in this town who's had sightings who still won't come talk to us because just out of fear of being ridiculed," Barcelo told WNCN. "And that's very common."
Barcelo said he recently took a cast of another strange footprint found at nearby Medoc Mountain State Park.
"We brought it in and they ended up calling another ranger and then another ranger and then the superintendent," Barcelo told WNCN. "All bets were off, they had no idea what it was."
That unidentifiable print is now on display at his museum.