Circus cyaneus, commonly known as the Northern Harrier, is a medium-sized raptor found across North America, Europe, and Asia. This bird is easily recognized by its long wings, long tail, and distinctive facial disc, which helps it locate prey. Northern Harriers primarily hunt small mammals and birds, often flying low over open fields and marshes. The species prefers habitats such as grasslands, wetlands, and agricultural areas. They are known for their unique hunting style, gliding gracefully while scanning the ground for movement. Northern Harriers are also notable for their social behavior, often seen in groups during migration and winter months.