Ukrainian birds use fiber optics for nests due to war

Published on 2026-07-02 | Translated from Spanish

A recent study has revealed that in Ukraine, birds are incorporating fiber optic cables into their nests, replacing twigs and grass. The cause is the scarcity of natural materials after more than four years of conflict. For citizens, this phenomenon is a reminder of how war transforms the environment beyond the human realm, even affecting the behavior of local wildlife.

small bird perched on a war-damaged tree branch, weaving a thin fiber optic cable into its nest structure beside a broken wooden utility pole, loose cable strands hanging down, scattered natural twigs and grass on the ground below, dusty battlefield landscape with distant smoke haze, photorealistic wildlife documentation style, bright daylight, sharp focus on the bird and cable texture, soft background blur, dramatic contrast between organic feathers and synthetic cable, ultra-detailed feathers and cable filaments, cinematic natural history photography

Fiber optics as animal construction material 🐦

The cables, originally installed for telecommunications, have been unearthed by birds such as magpies and crows, which weave them with other debris. From a technical standpoint, fiber optics offer flexibility and strength, although it is not a biodegradable material. Biologists point out that this behavior is a forced adaptation to the war-torn landscape, where vegetation has been razed. Human infrastructure thus becomes part of the ecosystem.

The next standard in nest building? 🤔

Who knows, perhaps we will soon see nests with high-speed internet connections. Ukrainian birds seem to have found a more practical use for fiber optics than providing uninterrupted streaming. That said, if a bird starts charging a toll for passing near its nest, we won't be surprised. War not only displaces people but also turns crows into makeshift engineers.