Ukrainian Birds Build Nests from Discarded Drone Cables

Birds in war-torn Ukraine are constructing nests from discarded fibre-optic drone cables, a striking sign of how the conflict is reshaping the natural environment. Researchers say the discovery of at least two such nests along the front line illustrates wildlife's adaptation to landscapes littered with the remnants of modern electronic warfare.

The nests, woven from dried grass and ultrathin fibre-optic strands, were found by Ukrainian servicemen in frontline regions such as Donetsk, Kharkiv, and Zaporizhzhia and sent to Kyiv's National Museum of the History of Ukraine in the Second World War for study. The cables are used extensively by both Ukrainian and Russian forces to guide attack drones, as the physical connection makes the aircraft resistant to electronic jamming. After missions, reels of cable stretching up to 20 kilometers are often left tangled in trees and scattered across fields, creating a pervasive new feature of the battlefield.

Yana Hrynko, a senior researcher at the museum, said objects like these nests demonstrate a change in the nature of war, tracing an evolution from conventional artillery to drone-dominated combat. Researchers do not yet know which bird...