Tyrant Flycatchers

Tyrant Flycatchers (Tyrannidae) - The Largest Bird Family in the world This very diverse bird family of some 90 genera is entirely restricted to the New World, chiefly the Neotropical…

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Passenger Pigeon

Passenger Pigeon - The Most Numerous Bird Ever It is not possible to give an accurate estimate of the population of Passenger Pigeon, North American bird (Ectopistes migratorius), as it…

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Stephens Island Wren

Stephens Island Wren or Lyall's Wren - The smallest flightless bird ever This may well be the Inaccessible Island rail which is still alive today, but there is one extinct…

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Aepyornis maximus

Aepyornis maximus - The Elephant Birds For a long time, Aepyornis maximus was thought to be the heaviest bird ever but it is now thought to have tipped the scales…

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Argentavis Magnificens

Argentavis Magnificens (Wingspan 7-7.6 m (23-25 ft)) - The Largest Bird Which Ever Flew The bird world was turned upside down in 1979 when two well-known Argentinian paleontologists announced that they…

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Dinornis maximus

Dinornis maximus Bird Facts The giant moa Dinornis maximus was less than half the weight of Dromornis stirtoni, at about 227 kg (500 lb), but it was significantly taller, the…

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