In the hour before daybreak, darkness intensifies, the insects fall silent, and The Gambia’s tropical pungency declines to no more than a delicate, anemic trace. The streets are lifeless. Anyone with a mind to be up at this time of the morning could claim dominion over Banjul, for even the night-watchmen are asleep, curled tight in shuttered shop doorways.

Driving through the tin-roofed capital in the open back of a Land Rover, I have no such design. My primary purpose is to reach Lamin Lodge, a rustic riverside restaurant, before first light. With the eastern sky beginning to brighten, the vehicle’s progress is ticked away by the pendulum swing of the binoculars dangling from my neck.

The lodge is a 30-minute drive south of Banjul, along the airport road and then a short stretch of rutted dirt track. Eventually it appears ahead of us: a ramshackle silhouette etched against the blossoming dawn.

On foot, I am directed across a pier to a creaky, Swiss Family Robinson piece of architecture built on stilts over the water. I am soon joined by 30 other bleary-eyed tourists collected from a succession of beachside resorts. We sit hushed, sipping coffee and listening to the first tentative notes of the dawn chorus.

When there is enough light, we are ushered into a trio of dugout canoes fashioned from the trunks of giant kapok trees, and cast off into what is now revealed to be a broad mangrove creek. The tide is steadily rolling in, and the oarsmen — one to a boat — labor against it as they paddle us to midstream. Our departure is heralded by a fly-past of rose-necked parakeets.

You are never far from water in The Gambia. This tiny West African nation, the smallest in mainland Africa, is a geographical oddity. Three hundred miles long and only 30 miles wide, its borders echo the course of the River Gambia — the legacy of a deal done in 1588, by which the Portuguese gave the British exclusive rights to the river. For centuries, The Gambia was a major slave-trading hub. In his best-selling autobiographical novel, Roots, Alex Haley claimed to have traced his ancestry back to Kunta Kinte, a slave seized from the Gambian village of Juffureh.

The Gambia became independent in 1965, and in the same decade its short stretch of Atlantic coastline became the focus for European package tourists. They continue to flock here by the thousands, the latest incarnation of an ancient, natural instinct. The migratory birds flitting around us pioneered the idea: When the European winter bites, fly south to Africa.

The mangrove channels fraying both banks of the River Gambia have contributed to this nation’s legend among international birdwatchers. More than 200 species (out of The Gambia’s total of 540) have been recorded within these labyrinthine waterways.

Our guide, Solomon, is able to identify species by their jizz — an instinctive amalgam of shape, sound and movement. “There,” he says. “Violet touraco.” We direct our binoculars at the canopy of a particular tree, picking out the bird in question. Then we flick through the pages of our bird books to confirm the sighting. Solomon has already moved on: “Above us, African harrier hawk. Over there, palm-nut vulture. This one here, malachite kingfisher. That one there, yellow-crowned bishop.”

As the sun lifts clear of the mangroves, the dawn chorus loses momentum and the avian traffic begins to ease. The boats glide drowsily forward. Solomon sits alert, picking out flutterings on either bank. Then, close to an islet, he stops the oarsmen, silences our idle chatter and points to the undergrowth.

The significance of what is going on is initially apparent only to the fundamentalist birders among us. Their urgent interest overwhelms any instincts to keep the boats on a steady keel. Focusing through binoculars, they lean and bob in search of a clean view through the mess of vegetation; the dugouts rock precariously.

I am slow to pick out the object of all this attention.  Some moments pass before I spot a large eye gazing out from among the chaotic mangrove roots, and I am gradually able to decipher the form of our quarry. My field guide confirms that it is, as Solomon assures us, a rarely seen white-backed night heron.

I mention the sighting later as I tour the grounds of the Atlantic Hotel with the premier authority on the birds of The Gambia, an expatriate Englishman named Clive Barlow.

He literally wrote the book. An increasingly battered copy of his field guide has accompanied me through the Gambian bush, up the creeks and among the mangroves, and now to this idyllic forested bird-garden within earshot of the diving splashes of the hotel swimming pool.

In dappled shadow, we creep with our binoculars at the ready. Firefinches and red-cheeked cordon-bleus flit away from us. A glossy starling struts dazzlingly through a shaft of sunlight.

It is not hard to see how, for Clive, a Gambian holiday in 1984 turned into a lifetime commitment to the country and its birdlife. “I came, I saw, I stayed,” he says. “Back then, there was nobody here doing anything with birds, and so there was a vacant niche for me.” He now runs a bird-watching business, benefiting from the explosion of interest from American and European birders — a boom that has been instigated, in no small part, by his enthusiasm.

Clive points out a yellow-breasted apalis, one of 139 species recorded in the garden. “Birds are a useful indicator of the health and well-being of an environment,” he notes. “That we have achieved so much in so small a space so quickly is very encouraging. It bodes well for similar projects in The Gambia.”

One such project is Abuko Nature Reserve, a 330-acre oasis of riverine forest close to Banjul’s international airport. Big game animals are long gone from The Gambia. Elephants, rhinos and lions were shot to extinction by white hunters in the early 20th century. But this little fragment of natural habitat is home to crocodiles, antelope and monkeys, such as the red colobus rattling the branches in tantrum above me.

I have stopped to decipher a distinctive set of V-shaped hoofprints on the muddy path. They curve away from the path into the thicker, wetter terrain that is the customary environment of the most aquatic of all antelopes, the sitatunga. There he is, a male with swept-back horns. Stalking through the shallows, he lifts each foot carefully out of the water, exposing the specialized, splayed hooves that enable him to walk where other animals would sink.

When the beautiful antelope melts into the forest shadows, I continue my walk through the reserve. At times I can hear the rumblings of the nearby main road, but mostly I am accompanied by the natural soundtrack of Africa. In the course of two languid hours, I encounter a troop of vervet monkeys, glimpse a patas monkey — the world’s fastest primate — as it sprints for cover, and significantly lengthen my bird list. That so small a reserve can flourish is testament to a tiny country that has always known size is not everything.

INFO TO GO

Clive Barlow runs bird-watching tours throughout the year, often in association with American professional clarinetist Andrew Lamy, a leading expert in birdsong. Their guided two-week group tours of The Gambia and Senegal start at $4,990 per person, departing from New York (JFK). West African Tours offers a range of full- and half-day birdwatching trips departing from the coastal hotels. Tourism to The Gambia is primarily centered on the European market. The leading British company is The Gambia Experience, which provides a wide range of package tours departing from London’s Gatwick Airport (LGW), starting at $1,200 for seven nights staying in 5-star accommodation.