Southern Cassowary vs Sulphur-crested Cockatoo
Quick answer
In a hypothetical one-on-one, the Southern Cassowary would most likely come out on top decisively, thanks to its more dangerous natural weapons and greater size and power. In reality, animals like these rarely meet, and both would usually avoid a fight.
This is a hypothetical, educational comparison based on typical size, strength, and natural weaponry. In the wild these animals rarely meet, and most encounters end without a fight.

Bird
Least Concern
Bird
Least ConcernSouthern Cassowary vs Sulphur-crested Cockatoo compared
| Attribute | Southern Cassowary | Sulphur-crested Cockatoo |
|---|---|---|
| Weight | 60 kg | 850 g |
| Length | 1.8 m | 50 cm |
| Top speed | 50 km/h | 50 km/h |
| Strength | 70/100 | 25/100 |
| Deadliness | 75/100 | 10/100 |
| Intelligence | 45/100 | 82/100 |
| Lifespan | 40 yr | 60 yr |
Southern Cassowary vs Sulphur-crested Cockatoo: common questions
Who would win in a fight, a Southern Cassowary or a Sulphur-crested Cockatoo?
In a hypothetical one-on-one, the Southern Cassowary would most likely come out on top decisively, thanks to its more dangerous natural weapons and greater size and power. In reality, animals like these rarely meet, and both would usually avoid a fight.
Which is bigger, the Southern Cassowary or the Sulphur-crested Cockatoo?
The Southern Cassowary is heavier, weighing around 60 kg compared with the other's 0.85 kg.
Which is faster, the Southern Cassowary or the Sulphur-crested Cockatoo?
The Southern Cassowary is faster, reaching about 50 km/h versus 50 km/h.
Which lives longer, the Southern Cassowary or the Sulphur-crested Cockatoo?
The Sulphur-crested Cockatoo typically lives longer, up to around 60 years compared with 40 years.
Sources & references
Size, speed, and conservation data are drawn from established zoological references. Compare full profiles for habitat, diet, and behaviour:
- Southern Cassowary — full guide
IUCN Red List (Least Concern, Casuarius casuarius)
- Sulphur-crested Cockatoo — full guide
IUCN Red List (Least Concern, Cacatua galerita)
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