Hungary is switching off the decorative lighting on Budapest's iconic Parliament, the Buda castle and Chain Bridge at night to conserve energy.⁣ ⁣ While this may be a disappointment to tourists, it's a welcome move for residents, and the area's swarming mayflies.⁣ ⁣ Mayflies are often confused and dazzled by the lights, which causes them to crash into the river bank in the short time they have to lay eggs. ⁣ ⁣ Experts say turning off the lights may be the best way to protect Budapest's mayfly population.⁣ ⁣ #budapest #hungary #mayflies #wildlife #climatechange