But of course birds in flight leave no trace—at least none visible to the naked eye. Bou, now 38, spent the past five years trying to capture the elusive contours drawn by birds in motion ...

Trace, who is sober, penned a lengthy open letter last week revealing that he and his loved ones are “genuinely worried” ...

Computer animation enhances the fossil evidence to trace the progress of winged flight ... of flight and the unique anatomical features of birds that enable them to defy gravity and achieve ...

Trace Cyrus is oldest brother in the Cyrus family, which also includes Brandi, Miley, Braison, Noah and Christopher ...

Introduced to New York City in 1851, the species today flourishes in both large cities and remote agricultural outposts—just so long as there is some trace of ... bird, the blackish and reddish ...