Fox Tracks and Field Signs: How to Read a Territory

Foxes are hard to see and easy to track. A single walk across soft ground after rain will usually tell you whether a fox uses a field, which line it walks and roughly when it passed. Learning fox tracks and the handful of other field signs turns a landscape from empty into occupied.

The print#

A red fox print is about 4–5 cm long and 3.5–4 cm wide: four toes and a small triangular pad, with claw marks usually visible because fox claws are non-retractile. The key feature is proportion. A fox print is noticeably narrower relative to its length than a dog's, and the two outer toes sit clearly behind the two central toes, so a line drawn across the front of the outer toes passes behind the rear edge of the inner toes.

Scat#

Fox scat is 5–8 cm long, roughly the thickness of a finger, twisted, and drawn out into a point at one end. Content varies with season and is often visible: fur and small bones in winter, beetle wing-cases in summer, blackberry seeds in autumn. Fresh scat is dark and glossy; it fades to pale grey and crumbles.

Placement is the giveaway. Foxes deposit scat as a territorial signal on conspicuous raised objects — molehills, tussocks, tree stumps, rocks, garden furniture, the middle of a path. Dog faeces are dropped wherever the dog happened to be, and cats bury theirs. The smell is distinctive too: strongly musky, quite unlike dog.

Earths, runs and other signs#

• Earths. Entrances 20–30 cm across, often several, dug into banks, under tree roots, sheds or in old badger setts. An active earth has fresh spoil, a smooth polished entrance, a strong musky smell, prey remains and — in early summer — flattened play areas and scattered cub-chewed rubbish.
• Runs. Narrow, persistent trails through grass and under fences, with gaps worn at the same points year after year. Look for hair caught on the lower strands of barbed wire, at roughly knee height.
• Scent posts. Small deposits of urine on prominent objects, with a sharp, unmistakable odour that carries surprisingly far on damp days.
• Kill remains. Feathers sheared rather than plucked cleanly, and bird bones cracked. Fox kills are often partly buried nearby rather than left in the open.
• Caches. Small, freshly disturbed patches of soil a few centimetres deep, scattered rather than clustered — see what foxes eat on scatter-hoarding.

Building a map#

1. Walk the same circuit weekly, after rain, and mark every sign on a phone map or a paper sketch.
2. Photograph prints with something for scale — a coin, a pen, a ruler if you are being careful.
3. Note direction of travel, not just presence. Repeated direction reveals a route between a lying-up spot and a feeding area.
4. Add scat locations. A cluster of scent-marked posts usually traces a territory boundary.
5. After a month, the pattern resolves: a few habitual crossing points, one or two core areas, and edges where signs from different animals overlap.

The reward for this is a different kind of sighting. Once you know where a fox crosses a hedge and roughly when, you can be there before it is — which is how most good fox photographs actually happen. Combine it with the calling season described in fox sounds explained, and a winter evening becomes a survey.

Two things make tracking easier: knowing what a den looks like when you find one, covered in what does a fox den look like, and knowing how to tell fox sign from coyote sign if you are in North America — fox vs coyote has the measurements.