This documentary investigates giant bird sightings. Fossil record does show that giant birds with wingspans between 12 and 18 ft (3.7 and 5.5 m) were likely contemporary with early man. Roc is an enormous legendary bird of prey and Recently a giant subfossil eagle, the Malagasy crowned eagle, identified from Madagascar was ually implicated as a top bird predator of the island, whose megafauna once included giant lemurs and pygmy hippopotami. This is the full documentary also featuring native american thiunderbirds.\r
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The largest bird in the fossil record may be the extinct elephant birds (Aepyornis) of Madagascar, which were related to the ostrich. They exceeded 3 m (10 ft) in height and 500 kg (1,120 lb). The last of the elephant birds became extinct about 300 years ago. Of almost exly the same upper proportions as the largest elephant birds was Dromornis stirtoni of Australia.\r
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The largest carnivorous bird was Brontornis, an extinct flightless bird from South America. The tallest bird ever however was the giant moa. The second largest bird ever capable of flight was Argentavis magnificens and The largest bird capable of flight was Pelagornis sandersi, which had a wingspan of up to 24 feet. \r
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