Amur Falcon (Falco amurensis)

The Amur Falcon, a small bird of prey, weighs about 4.2 to 7.8 ounces with a wingspan measuring 32 to 40 inches. Distinctive in appearance, they sport slate-grey plumage on their upperparts while their underparts exhibit a stunning orange color. 

Amur Falcons are known widely for having the longest migration route on an open sea of all birds of prey2; for around 9,000 miles,, they travel between their breeding grounds in southeast Russia and northern China and the coasts of eastern or southern Africa.