Help protect the thousands of birds migrating through our region this season. By Catherine Wendlandt 4/19/2021 at 11:50am Itâs time to go dark, folks. The Houston Audubon and Mayor Sylvester Turner are asking Houstonians to turn off all nonessential lights on buildings from 11 p.m. to 6 a.m. for the next couple of weeks. Why? To save nearly two billion birds making their way through Texas. April 19 to May 7 is peak season for bird migration, and Houston is situated in the Central Flywayâone of the most important avian routes. The Bayou City is one of the most dangerous cities for avian migration due to our location and high amounts of light pollution. Birds often travel at night and canât tell the difference between glass and the image it reflects, so lights on buildings can disorient the flocks in potentially catastrophic ways.Â