Birds have long been our inspiration for flight, and researchers at Princeton University have found a new trick in their arsenal: covert feathers. These small feathers on top of birds’ wings lay ...

"Fossil feathers are usually preserved in ancient mudrocks laid down in lakes or lagoons. The fossil vulture is preserved in ...

She noticed small feathers underneath the bird’s wings popping out in unusual ways. Unlike the larger contour and flight feathers that streamline a bird’s body, these covert feathers are ...