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Northern Hawk Owl vs Stygian Owl

Surnia ulula versus Asio stygius

Play a quiz with Northern Hawk Owl and Stygian Owl

Northern Hawk Owl (Surnia ulula) Northern Hawk Owl
Stygian Owl (Asio stygius) Stygian Owl

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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.

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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.

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.

Both species are medium-sized owls, but the Northern Hawk Owl has a more streamlined, hawk-like appearance.

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.

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.

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.

Vocalizations are not well-documented for field differentiation, but Northern Hawk Owls are known for their high-pitched calls.

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Northern Hawk Owl · Stygian Owl · My Tricky Birds