Two of the three released birds of prey come from Ostrava Zoo, which has long been active in breeding and reintroducing bearded vultures as part of a European conservation program. The chicks were raised naturally by their bird parents, which is crucial for their ability to survive in the wild. The third individual comes from the Bulgarian station of the Green Balkans organization.

The event was attended by representatives of the city of Sliven, Bulgarian state institutions, delegates from the EU and foreign embassies. The Czech Republic was represented by staff from the Embassy of the Czech Republic in Sofia and experts from Ostrava Zoo. Together with their Bulgarian partners, they contributed to the return of this iconic bird of prey and strengthened Czech-Bulgarian cooperation in nature conservation.

The project is part of the broader LIFE initiative and aims to restore the bearded vulture population across the Balkan peninsula. The event in Sliven stands not only as a symbol of ecological restoration but also as a tangible result of international collaboration in the protection of endangered species.