As millions of migratory birds pass through Chicago each spring, volunteers race to rescue injured birds and document deadly ...

Some bird species attack windows because they mistake their reflection for a rival. Take preventative measures in the spring, when the behavior is at its peak.

NEW YORK — The next time you see birds flying in a V, consider this: A new study says they choreograph the flapping of their wings with exquisite precision to help them on their way. Subscribe to read ...

Turning off outdoor nights at light can aid spring bird migration, with tens of millions in flight over Michigan late this week.

Swifts practically live in the sky. These birds skip land for nearly a year, doing everything midair, from eating to sleeping. They travel thousands of miles without ever stopping to perch. Scientists ...

Each year, billions of birds take part in migrations that seem almost unbelievable. With the help of instincts, stars, ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Frigatebirds can remain airborne for days at a time without ...