Most of the large birds out here soar, i.e. can circle round and round without flapping the wings, and also can rise thus from 100 or 200 feet to some 8,000 by same means. The pelican, the ...

The Andean condor is the world's heaviest soaring bird and can weigh up to 15kg The world's heaviest soaring bird flaps its wings just 1% of the time during flight, researchers have found.