Start Where the Ground Is Soft

Every wood is busier than it looks. Most of the traffic happens overnight and leaves almost no trace, but after rain the track between the gate and the trees becomes a noticeboard. Mud holds a record for a day or so, and a few places collect it: gateways, stiles, the dip where a path crosses a ditch, and the strip at the woodland edge where animals feel safer under cover.

Walk slowly, keep your own footprints to one side, and get low — tracks look like nothing at eye level but resolve into toes and pads at knee height. Measure prints against something standard. A credit card is 85mm long, which is enough to separate most of our common mammals.

Five Prints You'll Actually Meet

• Roe deer. Two narrow, pointed cleats, 4–5cm long, set close together and slightly angled; small dew-claw dots may show in soft ground.
• Badger. Broad and roughly rectangular, five toes in a wide arc with clear claw marks and a long heel pad. The whole foot goes down, so prints often smudge into one another.
• Fox. A neat oval, four toes, claws usually visible, travelling in a straight line from A to B. Dog prints wander, splay and look blunter.
• Rabbit and brown hare. Small and densely furred. Hares are noticeably larger and longer, and their hind feet land ahead of the front feet at speed.
• Grey squirrel. Just over 3cm, with four long toes and a shape like a tiny palm. Squirrels hop, so prints arrive in pairs.

Nibbled Leaves and Gnawed Nuts

Feeding signs are often more common than tracks and they last longer. Look at the height of the damage. Deer have no upper front teeth, so they tear and pull, leaving ragged, frayed ends on bramble, ivy and honeysuckle up to about 1.5m — that band is the browse line. Below head height, clean 45-degree cuts mean rabbits or hares, whose incisors work like secateurs. A hole nibbled from the middle of a leaf is usually caterpillar work, while crisp semicircles taken from the edge of a rose leaf are the signature of leaf-cutter bees.

Nuts and cones tell a smaller story. A hazelnut with a ragged hole and a hollow centre is a squirrel's work; a neat round hole with tooth marks around the rim is likelier to be a wood mouse. Nuthatches wedge nuts into bark crevices and hammer them open, so a scatter of broken shell at the foot of one trunk is worth a second look. Squirrels strip the scales from cones and leave the bare core behind, like an apple core.

Feathers, Pellets and Other Leftovers

Feathers on a path usually mean moulting or a meal. A single large feather with a clean quill has been shed; a scatter of small ones with broken shafts suggests something was eaten there. Woodpigeon feathers carry a bold white band, jays a barred blue wing panel, and cock pheasants an unmistakable copper. Photograph rather than pocket: wild birds and their feathers are protected, and they belong to the wood.

Under a favourite roost you may find owl pellets — grey, dry, sausage-shaped parcels of fur and bone, roughly 3–7cm long, with white splashes on the trunk and ground beneath. Fox scat is often left on a stone or tussock as a marker, twisted at one end and full of fur, beetle cases or fruit pips. Badgers use shallow pits at the path edge instead, returning to the same ones. Handle neither; a photograph and a note give you the same information without the risk.

Holes, Burrows and Scratch Marks

Structure survives rain. A badger sett shows as a group of oval entrances 25–30cm wide, each with fresh spoil outside and well-worn paths running between them; bedding is often dragged out to air in late winter. Rabbit warrens are smaller and neater, with closely cropped grass around the holes and runs radiating into the field.

Trees keep their own records. A clean round hole about 5cm across in a smooth trunk, with sawdust below, is likely to be a woodpecker nest; ragged, irregular excavations in dead wood are feeding holes. A sapling stripped in vertical shreds at 30–80cm, sometimes shiny with scent, has been frayed by a roe buck marking territory. Smoothed, muddy patches and claw scores on a trunk may be a badger's rubbing post.

Fieldcraft, and a Reason to Come Back

Go early. Two hours after dawn is when tracks are crisp, scent lingers and birdsong names the species for you. Walk a few paces, stop for a breath, then move again. Stick to the path rather than pushing into cover, particularly in spring, when ground-nesting birds and deer with young are the ones paying for your curiosity. Keep dogs on a lead near livestock and between March and August.

A short kit makes a big difference: notebook and pencil, a phone for photographs, a small hand lens, a tape measure or credit card, and thin gloves for turning things over that you would rather not touch. Note the date, the weather and what you found, then leave everything exactly as it is. Walk the same route three weeks later — the second visit is where a walk stops being scenery and becomes a story you can follow.