Two nests combining dry grass and cable were sent by Ukrainian soldiers to Kyiv’s War Museum, where researchers are examining how wildlife is adapting to the debris of drone warfare. One nest will remain in the museum’s collection, while the other will be studied by specialists in the Netherlands. Fiber‑optic‑guided drones are increasingly used by both Ukrainian and Russian forces because their wired control links help them resist electronic jamming, and long strands of cable now drape trees, fields, and damaged settlements across frontline regions. Biologist Auke‑Florian Hiemstra has said that DNA traces from nest material could identify the bird species that built the nests. He warned that the cable may make nests stronger but also risks entangling birds, so its broader ecological effects in Ukraine remain unclear.