One Male Bison, 25 Wild Calves: Azerbaijan's Unlikely Comeback Story

Picture this: Seven years ago, a handful of European bison stepped out of transport crates onto the slopes of Shahdagh in northern Azerbaijan, blinking at a landscape they’d never seen before. These weren’t wild animals returning home—they were zoo-born creatures getting their first taste of freedom. Today, that gamble has paid off in ways that few rewilding projects can claim.

What started with a single surviving male Caucasian bison (bred in a West European zoo with other European bison) has evolved into a thriving population. The World Wildlife Fund, working alongside the UN Environment Program Fund and Azerbaijan’s Ministry of Ecology and Natural Resources, orchestrated the 2019 release on Shahdagh’s slopes. Since then, 25 calves have been born wild—a testament not just to the animals’adaptability, but to the careful stewardship that made their return possible.

Elshad Askerov, head of WWF Azerbaijan, calls it a historic opportunity. The region’s environment had been ravaged during the Soviet period—soils and forests were overused, habitats fragmented. These massive herbivores aren’t just making a comeback for the sake of nostalgia. Bison reshape entire ecosystems. Their hooves break up soil, their grazing controls understory vegetation and reduces fire risk, their dung feeds plant and insect species. They’re ecological engineers in thick fur, and Shahdagh is already reaping the benefits.

The success in Azerbaijan is catching attention across the Caucasus region. Similar rewilding efforts are underway in Portugal, the UK, and Romania. Askerov hints that neighboring countries like Georgia or Armenia are interested in replicating the model. The larger vision? Eventually, these separate herds will expand enough to meet and merge into one unified Caucasian bison population—a species that once roamed most of Eurasia before being hunted to near-extinction.

Seven years. Twenty-five calves. One unforgettable lesson in how patience, partnership, and the right protected landscape can breathe life back into species we nearly lost forever.