Great Gray Owls (Strix nebulosa) are the largest owl species in North America. They have a wingspan over 4 feet with a body length of up to 27 inches. They can weigh over 2 pounds. Females are usually larger than males, but they are otherwise identical in appearance. Great Gray Owls have a large, rounded, half-domed head with a large, flat facial disk and no ear tufts. The Great Gray Owl was first described by Johann Reinhold Forster in 1772. The name "nebulosa" is derived from the Latin nebulosus, "misty, foggy." Perhaps for this it has also been called Great Gray Ghost or Phantom of the North. It's the provincial bird of Manitoba.