Rat Tracks

What Do Rat Tracks Look Like & How to Identify Them.

Tracks left in the dust by (a) Norway Rat and (b) House Mouse

Tracks left in the dust by (a) Norway Rat and (b) House Mouse

The rat's hind foot track will measure 3/4 to 1 inch, whereas the mouse's hind foot track will measure approximately 3/8 inches or less. Rodents, especially rats, leave "tail drag" marks between their foot tracks.

Norway Rat and House Mouse Tracks
Norway Rat and House Mouse Tracks
Rodent Rub Marks
Picture: San Mateo County Mosquito & Vector Control District

The travel routes that rodents use between their nests and food/water sources are called runways. Rodents, particularly rats, will often use the same runways and leave dirt and oils from their fur, smudging the surfaces. You can observe these smudge marks on rafters, along ledges, and vertical pipes. They also leave "swing" marks, where the rats have to swing their bodies under obstacles.

Mice Droppings


  • Qty: 50‐75 pellets a day

  • Size: 1/4" long

  • Shape: Small, one or both ends pointed

Roof Rat Droppings

Roof Rat

  • Qty: 40-50 pellets a day

  • Size: 1/2" long

  • Shape: Curved, oblong shaped with pointed ends. They are scattered.

Norway Ray Droppings

Norway Ray

  • Qty: 40-50 pellets a day

  • Size: 3/4" long

  • Shape: Retanular, larger with blunt ends. They are found in small groupings.

UV Rodent Tracker is an industrial grade professional UV LED light. This UV light is able to detect the presence of urine, making rodent inspection easier and more efficient.This increases your ability to detect the animal urine with more efficiency. This ultraviolet flashight, uses 12 ultraviolet LEDs shining at 390 nanometer wavelength, offering a deep UV frequency.

Recommended Uses:

  • For Detecting: Animal Urine

  • Use with yellow goggles will enhance ability to see urine, but is not necessary.

Use it in conjunction with a detection system that uses cotton balls with fully RodoFiber‐non‐toxic fluorescent powder that will coat their bodies for easy tracking rodent or animal urine.

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Written by our resident pest control expert Ken Martin.

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