Great Horned Owl vs Southern Cassowary
Bubo virginianus comparé à Casuarius casuarius
Side-by-Side Comparison
| Attribut | Great Horned Owl | Southern Cassowary |
|---|---|---|
| Nom scientifique | Bubo virginianus | Casuarius casuarius |
| Ordre | Strigiformes | Casuariiformes |
| Famille | Strigidae | Casuariidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | 55,0 cm (21.7 in) | 155,0 cm (61.0 in) |
| Envergure | 127,0 cm (50.0 in) | 60,2 cm (23.7 in) |
| Poids | 1400,0 g (49.38 oz) | 58000,0 g (2045.89 oz) |
| Régime alimentaire | Extremely diverse — mammals (rabbits, skunks, rodents), birds (including other raptors), reptiles, amphibians, and fish. … | Primarily fallen fruit from the rainforest floor, also fungi, invertebrates, and small vertebrates. A critical … |
| Taille de la couvée | 1-4 | 3-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Habitats partagés
Great Horned Owl only
Southern Cassowary only
Aucun(e)
Great Horned Owl
Diverse habitats including forests, deserts, swamps, urban parks, and suburban areas. Nests in tree hollows, cliff ledges, and abandoned nests of other large birds.
Southern Cassowary
Tropical rainforests, mangroves, and adjacent habitat in New Guinea and northeastern Australia.
Song & Call Comparison
Great Horned Owl
Deep, resonant 'who-who-who-who-ooo': the classic 'hoo-h'HOO-hoo-hoo' territorial duet of a mated pair. Booms at dusk. Female pitch slightly higher than male.
Southern Cassowary
Produces very deep, booming rumbles and low-frequency calls below 20 Hz (infrasound), felt more than heard. Also gives loud bellowing grunts audible up to 1 km away.
Geographic Range & Migration
Great Horned Owl
North and South America from subarctic Canada to Tierra del Fuego. One of the most widespread owls in the Americas.
Southern Cassowary
New Guinea, nearby islands, and northeastern Queensland, Australia.
Statut de conservation
Great Horned Owl
Southern Cassowary
How to Tell Them Apart
Great Horned Owl
Mottled grey-brown plumage with heavy dark barring. Prominent ear tufts, yellow eyes, and a white throat patch give a fierce expression.
Dark grey-black hooked bill almost hidden by facial disc feathers
Southern Cassowary
Glossy black hair-like plumage. Brilliant blue and red bare skin on the head and neck. A large bony casque crowns the head. Vestigial wings with no flight feathers.
Long, laterally compressed, dark grey bill
About These Birds
Great Horned Owl
The great horned owl is the most powerful and widespread owl in the Americas, earning the nickname tiger of the sky. It is one of the earliest nesting birds, often laying eggs in January when snow still covers the ground. Great horned owls are fierce predators, regularly taking prey up to three times their own weight.
Southern Cassowary
The southern cassowary is often called the most dangerous bird in the world due to its powerful legs and dagger-like inner claw that can reach 12 cm in length. Despite this reputation, cassowaries are vital rainforest keystone species, dispersing seeds of plants that no other animal can. The purpose of their distinctive casque remains debated.