Northern Hawk Owl vs Stygian Owl
Surnia ulula versus Asio stygius
Play a quiz with Northern Hawk Owl and Stygian Owl
Northern Hawk Owl
Stygian Owl
In short
The Northern Hawk Owl and Stygian Owl can be distinguished by their behavior and plumage. The Northern Hawk Owl is diurnal and often perches on prominent trees, while the Stygian Owl is more nocturnal with prominent ear tufts and dense dark streaking on its underparts.
Identification tips
Look for the diurnal activity and hawk-like flight of the Northern Hawk Owl. Note the prominent ear tufts and dark streaking of the Stygian Owl. Consider habitat: boreal forests for Northern Hawk Owl, open woodlands or urban parks for Stygian Owl.
Size
Both species are medium-sized owls, but the Northern Hawk Owl has a more streamlined, hawk-like appearance.
Plumage
The Northern Hawk Owl has a barred pattern with a white face and dark border, whereas the Stygian Owl has dense dark streaking and a small dark head with prominent ear tufts.
Behaviour
Northern Hawk Owls are diurnal, often seen gliding or flapping with falcon-like strokes. Stygian Owls are more nocturnal and appear attenuated with a preference for hunting birds.
Habitat
Northern Hawk Owls inhabit boreal forests and open areas, while Stygian Owls prefer open woodlands like pine-oak forests and can also be found in urban parks.
Voice
Vocalizations are not well-documented for field differentiation, but Northern Hawk Owls are known for their high-pitched calls.