Around the world, birds sing longer in light-polluted areas
It’s unclear if the encore hurts the birds in the long run, or if it provides benefits
In places with a lot of artificial light, birds like this cardinal sing an extra 50 minutes on average — 18 minutes more in the morning and 32 minutes more in the evening — compared with birds in areas with less light pollution.
Ser Amantio di Nicolao/Wikimedia Commons