The Wildlife & Nature of the Fishermen's Trail

Almost every stage description of the Fishermen's Trail mentions something growing or living alongside the path - wind-bent dune plants here, nesting storks there, cork oaks on the inland route. Pulled together, it's a rich picture of the Southwest Alentejo and Vicentine Coast Natural Park, which the trail follows for much of its length (the park itself runs from Porto Covo to Burgau, so the final stretch into Lagos sits just outside it). Here's that picture in more depth.

The Dune Coast

The dunes around Porto Covo and Ilha do Pessegueiro, at the northern end of the trail, are where this starts. Pines, rosemary and low coastal shrubs grow here, shaped by the near-constant salt wind coming off the Atlantic.

Not everything growing in these dunes belongs there. Further south, around Vila Nova de Milfontes, native coastal vegetation gives way in places to Acacia trees - and that's a documented ecological problem, not just a passing detail. Acacia longifolia was deliberately planted along Portuguese dunes in the late 19th and early 20th centuries specifically to stop them eroding. It has since spread well beyond where it was planted, forming dense stands that displace the native shrubs and grasses these dunes originally supported. It remains an ongoing conservation issue along this coast.

Cork & Holm Oak Country

The Caminho Histórico - the Historical Way, a separate long-distance route within the Rota Vicentina network that runs inland rather than along the coast - passes through a different kind of landscape entirely: maquis scrubland opening into meadows dotted with old cork and holm oaks. Cork oak woodland, known in Portugal as 'montado', is one of the country's most distinctive agricultural landscapes, and Portugal produces roughly half the world's cork from it.

The harvesting itself is worth knowing about. A cork oak's bark is stripped by hand on a nine-year cycle; the tree survives the process and regrows a new layer of bark each time. The same tree can be harvested this way for 150 years or more. It's a renewable industry that has also, as a byproduct, helped preserve a distinctive landscape (Visitalentejo.pt).

Life on the Cliffs

On the more exposed clifftop stretches, the vegetation changes again: low, hardy plants grow close to the ground, holding on directly at the cliff edge. It's tougher, more compressed growth than the dune flora further back from the sea, adapted to constant wind, salt spray and thin soil with almost no shelter.

In places - Praia do Amado among them - wooden boardwalks now lead down through the dunes to the main viewpoints. They channel foot traffic away from the fragile vegetation and dune structure, reducing the trampling that would otherwise come with heavier visitor numbers.

The Storks

White storks nesting directly on the sea cliffs around Cabo Sardão are one of the more unusual sights on this coast - Portugal's own tourism authority describes it as the only place in the world where storks build their nests on seashore rocks like this. We've covered that in more detail in our article on the trail's highlights.

There's a second story behind the storks you'll see all along this coast, though, autumn or not: most of them no longer migrate to Africa for the winter at all. White storks were once fully migratory across Europe. Research tracking the Portuguese population found that the number of storks remaining through winter rose from 1,187 birds in 1995 to 19,295 in 2020, with the estimated proportion staying resident year-round climbing from 18% to somewhere between 68% and 83% over the same period. Reliable food supplies, particularly from landfill sites, are thought to be a major factor behind the shift.

The Migration You Can Actually See

The genuine long-distance migrants are the raptors passing over Sagres each autumn - short-toed eagles, Bonelli's eagles, black kites and many other species crossing the southwestern tip of Europe on their way to Africa. We've written about that in detail in our autumn planning guide, since timing matters if you want to catch it: particularly late September and early October, when the concentration of birds passing through peaks.

Life Below the Cliffs

Look out to sea from the clifftop sections near Sagres, and there's a reasonable chance of spotting something in the water. The waters off Sagres are unusually productive, with local upwelling supporting a rich marine ecosystem close to shore. Common dolphins and bottlenose dolphins are the most frequently sighted, with harbour porpoises and, further out, Risso's dolphins also recorded in the area. Sightings aren't guaranteed, and you're far more likely to see them from a boat than from the clifftop path, but it's worth knowing this stretch of water carries as much life as the land beside it.

The northern and central sections of the trail are particularly rich in dune and cork-oak landscapes, while the southern end adds the stork cliffs, the migration bottleneck at Sagres, and the productive waters offshore. Walking the full route means moving through all of it in sequence.