Coastal birdwatching rewards a little planning more than almost any other branch of the hobby. Turn up at a cliff colony in February and you will find bare rock, a few shags and a great deal of wind. Come back in late June and the same ledges are a wall of noise and jostling bodies. The birds were never far away — just offshore, or somewhere further south.
The rhythm of the year is straightforward. Seabirds take over cliffs and islands from early spring, raise chicks through early summer, and melt away again by August. Then the estuaries take over, filling with waders and wildfowl through the winter. Plan your walks around that calendar and you will see far more than you would by turning up at random.
Spring: the colonies fill up
Guillemots and razorbills are usually first back, often appearing as dark rafts on the sea before they commit to the ledges. Fulmars and kittiwakes settle soon after, while shags occupy the lower rocks throughout the year. Puffins are the latecomers, arriving from late March onwards — and, frustratingly, among the first to leave.
April and May are ideal for cliff-path walking. The birds are noisy, the paths are quiet, and there is no heat haze to blur your views. As a rule, early morning and late afternoon give the best light; a south-facing cliff in the middle of the day becomes a shimmering wall. Wherever there are viewing platforms, use them. Grass at the cliff edge looks solid and often is not, and a nesting fulmar will not thank you for walking over its ledge.
Summer: peak season on the cliffs
By June the colonies are at full volume. This is the time to be on the coast, whether you are walking a clifftop path or booking a boat.
Island landings
The great set-piece trips — the Farne Islands from Seahouses, Skomer from Martin's Haven, the Isle of May from Anstruther, Rathlin from Ballycastle, Lundy from the north Devon coast — need booking well ahead. Landings depend on the weather, and several islands restrict or close access during the breeding season, so check current arrangements before you travel rather than assuming last year's rules still apply.
Reading a cliff
A few minutes learning the layout pays off. Guillemots and razorbills crowd narrow ledges, packed shoulder to shoulder. Kittiwakes build small nests on similar ledges, often on protruding rock. Fulmars favour grassy slopes and fly on stiff, straight wings. Shags sit lower down, dark and snaky. Gannets are unmistakable: large, white, black-winged, and capable of folding into a dive from a great height.
Terns are the other summer speciality — sandwich, common, Arctic and little terns nest on shingle and low islands around Britain, and a colony in full flight is one of the great coastal sights. Keep well back from nesting areas, and keep dogs on a lead.
Late summer: seawatching and departures
By August the auk chicks are at sea and the cliff-top drama is winding down. Attention shifts to headlands. With an onshore wind — particularly when low pressure and rain push birds closer to land — a good seawatch can produce great and Arctic skuas, Manx shearwaters, storm petrels and, later in the autumn, Leach's petrels and little auks.
Strumble Head in Pembrokeshire, Pendeen Watch in Cornwall, Flamborough Head and the north Norfolk coast all have long seawatching traditions. Take waterproofs, a flask, and patience. Birds come in bursts, so watch steadily rather than wandering off after ten quiet minutes.
Autumn and winter: the estuaries take over
From October the action moves inshore. Dunlin, knot, grey plover, redshank, curlew, oystercatcher and both godwits arrive on mudflats and saltmarsh, joined by brent geese, wigeon, pintail, teal and shelduck. Offshore, look for common scoter, eider and divers, with red-throated and great northern divers often within scope range of a sheltered headland.
Tides matter more than anything else here. Waders feed on exposed mud at low water and are pushed onto roosts as the tide rises, so aim to be in position roughly two hours before high water. The biggest spring tides produce the best spectacles, when birds are driven off the flats entirely. Places such as Snettisham on the Wash, the Dee estuary, Morecambe Bay, the Solway, the Exe and Poole Harbour all deliver on the right day.
When you reach a roost, look for a hide, a sea wall or a raised bank and approach from behind it. A single person walking along the shoreline can lift hundreds of birds and cost them valuable energy on a cold day.
Six coastal walks worth planning a trip around
- Bempton Cliffs to Flamborough Head, Yorkshire. England's only mainland gannet colony, plus puffins, kittiwakes and razorbills, all from a well-made clifftop path.
- The North Norfolk Coast Path. Snettisham, Titchwell and Cley in a single winter weekend: wader roosts, marsh harriers and geese.
- Pembrokeshire Coast Path around Strumble Head. Seabird islands offshore, seawatching from the headland, and choughs on the cliffs.
- The Fife Coastal Path and the Isle of May. Walk the coast, then take the boat from Anstruther for puffins and terns.
- Fowlsheugh and Troup Head, Aberdeenshire. Sheer cliffs packed with auks in early summer, and gannets at Troup Head.
- Strangford Lough, County Down. A winter estuary walk with light-bellied brent geese and thousands of waders.
Before you go: tides, weather and good manners
- Check a tide table, not the weather app. It decides when birds are visible and when a causeway or sandbank becomes dangerous.
- Never cross tidal sands — Morecambe Bay, the Solway, the Holy Island causeway — without local guidance, and never rely on memory of last time.
- Take binoculars you can hold steady and, for estuaries, a scope. A waterproof jacket and boots with grip matter more than expensive glass on a wet cliff path.
- Stay on the path at colonies, keep your distance, and never use a drone near nesting birds.
- Keep records. Local bird clubs, BirdTrack and the Wetland Bird Survey all welcome volunteers, and your counts help protect the sites you enjoy walking.
Coastal walking and birdwatching fit together neatly: the best sites are usually reached on foot, and the walk itself keeps you warm while the tide does the work of moving birds towards you. Learn one stretch of coast properly, visit it in three different months, and you will know more about it than most visitors ever will.
Photo: ArtTower / Pixabay
