SPRINGFIELD, MO — Officials in a southwest Missouri city are planting small flags in piles of abandoned dog poop as part of a campaign to get residents to clean up after their pets downtown.

The ****** Department in Springfield, Missouri, posted photos of the flags on its Facebook page Wednesday.

The flags contain messages such as, “Is this your turd? Cuz that’s absurd” and “This is a nudge to pick up the fudge.”

The campaign started last week and the department noted on Facebook that leaving behind a pet’s mess in many cases violates a city ordinance.

The flags are made of bamboo and recycled paper.

The city said it picks up nearly 25 pounds (11.34 kilograms) of poop a week from downtown parks and parking lots, costing $7,500 annually.