![](https://media.audubon.org/maf_2020-02_castanho_0205.jpg?width=233&height=200&auto=webp&quality=10&fit=crop&disable=upscale&enable=upscale&blur=100)
Artificial Lighting May Shift Bird Migration by More Than a Week, New Research Says
January 14, 2021 —
Purple Martins exposed to bright nighttime light migrated eight days early—which could lead to starvation at their breeding grounds.