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Every year, tens of thousands of birds glide over the rusting remains of one of the Mediterranean's largest saltworks, to rest in the rare paradise it left behind.
But experts warn the sprawling salt flats of Montenegro's Ulcinj salina, a vital stop-off for migrating flamingos, pelicans and other species, is fading fast.
The salt company closed 13 years ago and since then, environmental activists and former employees have pushed for the return of production to revitalise both the local economy and a key habitat that relied on industrial-scale saltwater pumping.
"If we wait, probably in three years, we will not have this landscape as we see it today," environmental activist Zenepa Lika told AFP as she stood above the overgrown channels which crisscross the site.
Salt production began in Ulcinj almost a century ago, when the natural lagoon was transformed into a network of shallow evaporating basins.
The unique conditions the process demanded -- pumping saltwater in and out to maintain a shallow depth -- were also the perfect environment for hungry wading birds.
As the industry boomed, birds migrating to and from Africa along one of Europe's key flyways were increasingly drawn to the area; today it is internationally recognised as a vital wetland.
But when the salt company shuttered in 2013, the pumping that maintained the basins stopped, endangering the environment the birds have come to rely on.

An aerial view shows abandoned saltworks in Ulcinj, on June 2, 2026. Every year, birds in their tens of thousands glide over the rusting remains of one of the Mediterranean's largest saltworks to rest in the rare paradise it left behind.
It survived the disintegration of Yugoslavia in the 90s, but collapsed when the company responsible for the site declared bankruptcy amid allegations of mismanagement.
"I remember that as a child I climbed up there, all the way to the main roof tile," former salt farmer Omer Hot said, gesturing at the seven-metre-high storehouse roof.
A dirty grey mound is all that remains of the salt mountains that once filled the building, now a weathered steel skeleton.
"I cannot describe it. I mean, it looks ugly, really ugly," the 69-year-old said, peering through its corroding gates.
A shifting landscape
But beyond the crumbling infrastructure lies a bird haven.
According to experts, the salina hosts more than one percent of the global populations of at least seven bird species.
Despite developers eyeing the prime real estate on the country's tourist coast, activists like Lika successfully pushed to protect the site, which is over four times the size of New York's Central Park.
In 2019, it was recognised as an internationally important wetland under the Ramsar treaty -- designed to protect key habitats around the world.