https://birdcast.info/science-to-action/lights-out/

Cornell Lab
Migration Alert! Tonight thru Saturday, expect over 300 MILLION birds in the air each night. Bright lights can disorient them—make a difference by turning off non-essential lights and making windows safer. #LightsOutForBirds #LightsOutTexas #DarkSkies #LightPollutionAwareness