The Early Cretaceous of both China and South Korea has, in recent decades, produced a staggering amount of avian body and trace fossils. In Northeastern China, the birds of the Lower Cretaceous Jehol Group have been found completely articulated, with feathers and other soft tissues preserved. In various localities in South Korea, hundreds or even thousands of bird tracks and trackways have been discovered. Combining these two locations and the specimens they provide can give a unique and more complete view of early avian evolution.