The Andean Condor is the largest flying bird in the world. It reaches a max wingspan of 10 feet and weighs about 25 lbs. Found primarily in the Andean region of South America, the Andean Condor is now endangered and the focus of many conservation efforts.
The great bustard may be considered among the largest flying birds, as it is the world’s heaviest flying bird. They can weigh up to 40 pounds and have wingspans up to 8 feet long. 6 million years ago, in Argentina, a bird with a wingspan of 21 feet and probably weighed about 160 pounds soared through the sky, diving at speeds of up to 150 miles per hour. Scientists refer to the giant bird as Argentavis magnificens.
The Argentavis is the largest flying bird ever discovered. It weighed 154 pounds and had a wingspan of 23 feet. Extinct now, they are evolutionarily related to vultures, condors, and storks.
The largest flyer alive today weighs three times less than the Argentavis (the Great Kori Bustard at about 50 pounds), and it still needs to taxi and do a whole bunch of other things before it can fly. So you have to marvel at the sheer physics of Argentavis flight.
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