(AP) — How does a kangaroo escape a petting zoo?

It’s not the opening line to a dad joke. If you’re Chesney the kangaroo, you scale an eight-foot (2 1/2 meter) fence and go on the lam for three days, giving your keeper sleepless nights and sending residents of a small Wisconsin town on a search that would end happily on Saturday.

The unprecedented leap at Sunshine Farm in Necedah, Wisconsin, last week was precipitated by some stray dogs that rushed the enclosure and spooked the 16-month-old Chesney, said his keeper, Debbie Marland. She and friends then trekked hither and yon in this town about 160 miles (255 kilometers) northwest of Milwaukee.

They chased reports of sightings and even rented heat-seeking drones, which proved effective in narrowing down the wanderings of the high-jumping adventurer.

“I was putting on about 37,000 steps per day looking for him,” Marland said Sunday. “I haven’t done so much exercise in a very long time.”

Chesney and his roommate Kenny are named for country-music starKenny Chesney. They’re among 25 animals at Sunshine Farm, with horses, sheep, alpacas, Kunekune pigs, Highland cows and a Bactrian camel. The farm is generally open Fridays through Sundays from mid-May through mid-November and tours are offered to visitors who can interact with the animals.

Chesney escaped about 11:15 a.m. last Wednesday. Though he stayed within a three-mile (5-kilometer) radius of the farm, he kept his pursuers guessing.

Colton Johnson, owner of Midwest Aerial Drone Services, has used heat-sensing drones to help hunters recover deer and reunite missing dogs with their owners. Add a kangaroo to the list.

Johnson spent three days trailing Chesney alongside Marland and a team of volunteers. His strategy was similar to the ones he uses to find lost pets, but Johnson said the appearance of Chesney’s heat signature on the drone footage was unique.

“It almost looked like a dinosaur running through the woods,” Johnson said. “It’s got a long tail, and the way it was moving and hopping, that’s the only way that I can describe it.”

The team caught up with Chesney on Wednesday and again Thursday night, but Johnson said the frightened kangaroo slipped away — once by jumping into a cold river — and Johnson lost track on the drone.

According to Marland’s friend, Stacy Brereton, who helps out at the farm routinely, Friday was a tough day. No one had spotted Chesney all day and searchers feared he had wandered farther afield into even more unfamiliar territory, Brereton said.