Michele Menegon steps lightly onto a moss-covered boulder in Taï National Park, his boots avoiding a scatter of tiny black droppings left by a Maxwell’s duiker—just one sign of life on a trail that may have been trodden for half a million years. In this remote corner of southwestern Côte d’Ivoire, the forest hums with quiet vitality, its ancient animal paths winding beneath cathedral-like canopies of kosipo and other giant mahoganies. Here, in the largest intact stretch of Upper Guinean rainforest, rangers, scientists, and birds alike follow invisible threads of survival. The goal today: a glimpse of the white-necked picathartes, a rare bird that builds its mud nests beneath granite overhangs, deep in the heart of this primordial forest.

Taï is more than a sanctuary—it’s a last refuge. Of the vast Upper Guinean rainforest that once stretched across West Africa, only fragments remain, and Taï is the crown jewel. It shelters species found nowhere else, including the elusive Jentink’s duiker, a striking antelope with a two-tone coat that resembles a miniature tapir, and the zebra duiker, both endemic to this vanishing ecosystem. But the white-necked picathartes—also known as rockfowl—holds a special place in the hearts of those who know it. “The birds are important,” says OIPR ranger Gliman Hyacinthe, “simply because they’re rare and beautiful.”

The evidence of a thriving ecosystem is everywhere. Red river hogs have dug for roots in the soft earth, African civets have left middens filled with millipede remains, and the air thrums with the calls of Senegal coucals and unseen hornbills. Black-and-white-casqued hornbills, likely feeding in the canopy, may be dispersing seeds from more than 50 tree and liana species, carrying them over half a kilometer from parent trees—vital work in maintaining the forest’s genetic diversity. Even the forest floor tells a story: the dense canopy of primary trees restricts light, keeping undergrowth sparse and allowing animal trails to remain clear, used by creatures from forest elephants to tiny duikers.

Conservationists like Menegon, who directs biodiversity efforts for Leadership for Conservation in Africa, see hope here. Through partnerships with local NGOs like Eburny Biodiversity Conservation (EBURCO), they’re bolstering the work of OIPR rangers, ensuring that Taï remains a stronghold for species on the edge. The health of the Jentink’s duiker population, once a concern, is now a quiet triumph. And the continued presence of the white-necked picathartes—a bird so sensitive to disturbance that it’s a barometer of forest health—signals that, for now, the balance holds.

As sunlight filters through the canopy, dappling the boulders where the picathartes nests, the forest feels both timeless and fragile. But in its resilience, there’s a message: even in the face of immense pressure, some wild places still endure.