Extinct Birds Bigger Than Humans
By Radiocity Team
Published Jul 08, 2025
Elephant Bird (Aepyornis)
Native to Madagascar, this flightless bird stood over 10 feet tall and weighed up to 700 kg—its eggs were bigger than footballs.
Moa (Dinornithiformes)
These New Zealand giants reached 12 feet tall. Hunted to extinction by humans around 1400 CE, they left a lasting legend behind.
Terror Birds (Phorusrhacids)
Carnivorous and fast, these 10-foot-tall predators ruled South America after dinosaurs and could run down prey with deadly precision.
Argentavis Magnificens
One of the largest flying birds ever, it had a wingspan over 23 feet—nearly double that of today’s albatross—and weighed over 70 kg.
Dromornis (Thunder Bird)
An Australian bird as tall as 10 feet and weighing 500 kg, Dromornis was herbivorous but had a terrifying, powerful beak.
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Gastornis
Standing up to 6.5 feet tall with a massive beak, this bird lived in Europe and North America and may have preyed on small mammals.
Pelagornis Sandersi
While not heavier than humans, its 24-foot wingspan made it the largest flying bird ever—its toothed beak earned it the nickname “bony-toothed bird.”
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