(CN) - A new study on bird wing shape has found a pattern among birds of the same ancestry, called clades, and little correlation among flight styles. Previous wing shape studies have measured bone ...

Geographic and phylogenetic sampling of avian wing-bone morphology. Using measurements from 7366 skeletal specimens, we analyze variation in wing-bone length across 1520 bird species, representing ...

You can know a lot of things about birds just by the shape of their wings. A seafaring albatross, stretching out its sail-like airfoils, lives a very different life from a ground-dwelling antpitta ...

From geese and pelicans to cranes and cormorants, many birds use a V-shaped flock to master the aerodynamics of long-distance ...