Microraptor

Microraptors are small dromaeosaurid dinosaurs that lived in China during the Early Cretaceous period (about 125 to 120 million years ago). Its most distinctive feature is its four wings: it had flight feathers on its hind legs as well as its front legs, giving it a unique biplane-like shape. Microstructural studies of its feathers have revealed that it had iridescent black plumage. Birds, fish, and lizards were found in its stomach contents, suggesting that it hunted a wide variety of prey.