Resplendent Quetzal vs Southern Cassowary
Pharomachrus mocinno compared with Casuarius casuarius
Side-by-Side Comparison
| Attribute | Resplendent Quetzal | Southern Cassowary |
|---|---|---|
| Scientific Name | Pharomachrus mocinno | Casuarius casuarius |
| Order | Trogoniformes | Casuariiformes |
| Family | Trogonidae | Casuariidae |
| Conservation Status | Near Threatened | Least Concern |
| Length | 36.0 cm (14.2 in) | 155.0 cm (61.0 in) |
| Wingspan | 50.0 cm (19.7 in) | 60.2 cm (23.7 in) |
| Weight | 210.0 g (7.41 oz) | 58000.0 g (2045.89 oz) |
| Diet | Primarily wild avocados and other laurel family fruits, supplemented with insects, lizards, and frogs. A … | Primarily fallen fruit from the rainforest floor, also fungi, invertebrates, and small vertebrates. A critical … |
| Clutch Size | 1-2 | 3-8 |
| Population Trend | — | — |
Size Comparison
Habitat Comparison
Resplendent Quetzal
Montane cloud forests at elevations between 1,200 and 3,000 meters. Requires old-growth forest with dead trees for nesting cavities.
Southern Cassowary
Tropical rainforests, mangroves, and adjacent habitat in New Guinea and northeastern Australia.
Song & Call Comparison
Resplendent Quetzal
Melodious, repetitive cooing: a series of 'kowee-kowee-kowee' or 'woh-woh-woh-woh' phrases. Male sings from high exposed perches in cloud forest canopy. Evocative highland call.
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
Resplendent Quetzal
Southern Mexico through Central America to western Panama. Resident in mountain cloud forests.
Southern Cassowary
New Guinea, nearby islands, and northeastern Queensland, Australia.
Conservation Status
Resplendent Quetzal
Southern Cassowary
How to Tell Them Apart
Resplendent Quetzal
Males have iridescent emerald-green upperparts, a crimson-red breast, and extraordinarily long green tail coverts streaming up to 65 cm beyond the tail. Females are duller with grey breasts.
Short, broad, bright yellow bill partially hidden by green 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
Resplendent Quetzal
The resplendent quetzal was considered divine by the Maya and Aztec civilizations, associated with the feathered serpent god Quetzalcoatl. Its iridescent green plumage and long tail streamers make it one of the most beautiful birds in the world. Guatemala's currency is named after this bird.
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.