Birds, Nights, and Lights

It's May 1st as I write this. Birds are flying north again, as they have for millennia. 

What’s new in the past decade is that anyone with an Internet browser can watch the avian flyways over their county and state with a quick visit to The pictures are both impressive and concerning.

Most birds migrate at night, but nights aren't as dark as they once were. Learn why dark night skies are valuable for birds, and for people, too. Learn about the work of two organizations, and in my latest article at

Below, migrating birds find wetlands at night. These landings are made more difficult by artificial light. Photo: World Migratory Bird Day

Photo by World Migratory Bird Day