The seasonal changes to look for on a heathland walk

Why a heathland walk never looks the same twice

Heathland is one of Britain's rarest habitats, a man-made landscape kept open by grazing, cutting and burning over centuries. What makes it such a rewarding place to walk is how quickly it changes. A patch of ling heather that is grey-brown in March is a purple haze by August, and the same sandy track that crunches underfoot in a January frost will be humming with bees six months later. If you walk the same route once a month, you will notice far more than a visitor who comes once a year. Here is what to look for as the seasons turn.

Spring: birdsong, basking reptiles and the first green shoots

Spring on the heath starts quietly in late February, when woodlarks begin singing their gentle, fluting song on warm afternoons and skylarks rise in long, unbroken flights above the open ground. By March, stonechats are perched on the tips of gorse, flicking their wings and calling like two pebbles tapped together.

This is also the best time to see reptiles. Adders emerge from hibernation in February and March, often basking on south-facing banks and along path edges first thing in the morning. Males perform their stiff, weaving "dance" in April. Keep a respectful distance, keep dogs close, and never try to handle one.

• Look for: gorse in full yellow flower, cotton grass beginning to show on wetter ground, willow warblers arriving from mid-April.
• Listen for: the churring of a returning nightjar from late May, and the drumming of snipe over boggy hollows.
• Plant clues: bilberry leaves flushing on shaded banks, and the red, sticky leaves of round-leaved sundew appearing in sphagnum bogs.

Paths can be muddy and waterlogged well into April, so waterproof boots are worth the weight.

Summer: purple heather, butterflies and long evenings

High summer is the heathland showpiece. Bell heather flowers first, in June and early July, a deep magenta on dry banks. Ling follows from July into September, turning whole hillsides purple and filling the air with a low hum of bees. Cross-leaved heath, with its pale pink bells, marks the damper ground.

Butterflies and day-flying moths peak now. The silver-studded blue, a small butterfly with silvery spots under the wings, flies for a few weeks in June and July and rarely strays far from its colony. Look for grayling, small heath and the day-flying emperor moth, whose females can be found sitting low in the heather.

• Best time of day: early morning, before the heat stills everything, or the last hour before dusk when nightjars start churring and woodcocks roost.
• Watch your feet: adders and common lizards bask on open sandy patches, and ground-nesting birds such as nightjar and woodlark are easily disturbed.
• Take water: heathland offers almost no shade, and sandy soils drain fast.

Autumn: berries, fungi and the turning of the bracken

September and October bring a different palette. Bracken turns from green to rust to a deep bronze, and the heather goes over to seed, leaving a soft grey-brown haze. This is the season for foraging with your eyes rather than your hands — most heathland berries belong to wildlife, and many sites are protected.

Bilberry, crowberry and rowan berries ripen through September, feeding redwings and fieldfares arriving from Scandinavia. Fungi push up after the first soaking rain: fly agaric under birch, birch bolete along track edges, and waxcaps on short, grazed turf.

• Look for: striking bracket fungi on birch stumps, and the first frost-touched mornings in late October.
• Listen for: red deer stags bellowing at dawn and dusk on larger heaths.
• Practical note: never pick mushrooms unless you are certain of identification, and check whether the site permits collecting at all.

Winter: frost, tracks and visiting birds

Winter heathland can look drab, but it is arguably the most revealing season. Bare birches show the shape of the landscape, and hard frosts turn heather, gorse and molinia grass white. Puddles freeze into sheets of milky ice that catch the low sun.

Soft ground records everything. Fox, deer, rabbit and pheasant tracks are clear along ditches and damp tracks, and you can often follow them from one patch of cover to another. This is also when northern visitors arrive: hen harriers and short-eared owls hunt low over the open ground at dusk, and woodcock sit tight in damp scrub.

• Look for: deer and fox tracks in mud, ice patterns on bog pools, and the red, uncurling tips of sphagnum moss in wet flushes.
• Stay safe: bogs do not freeze reliably. Stick to boardwalks and marked paths, and turn back if the ground feels spongy underfoot.
• Dress for wind: heathland is exposed, and a still valley can be a biting hillside only a hundred metres away.

Getting the most from every season

A few habits will sharpen your eye. Walk slowly, and stop often — most wildlife reveals itself to the patient rather than the brisk. Carry binoculars even on a short stroll, and note what you see in a small notebook or on your phone, because comparing the same spot across a year is where the real pleasure lies. Respect the rules of the site, keep to paths in sensitive areas, and take nothing but photographs home. Dogs should be kept close, particularly between March and July when ground-nesting birds and young animals are at their most vulnerable. Walk the same heath through all four seasons and you will stop seeing a single landscape and start seeing a year.