The flight behavior of birds migrating at night can be altered when exposed to lights shining towards the sky (e.g. spotlights). Is it the same with lights shining towards the ground (e.g. streetlights)? Migration is high-energy demanding, then any alteration to their flight behavior may reduce the chances of birds successfully reaching their destination. We will collect 3D trajectories of free-flying nocturnal migrants to analyze if they react to experimentally controlled street-like lights.