The Guardian reports World’s largest soaring bird flaps wings only 1% of time in flight, study shows A study sheds light on just how efficiently the world’s largest soaring bird rides air currents to stay aloft for hours without flapping its wings. The Andean condor has a 3-metre (10ft) wingspan and weighs up to 15kg (33lbs), making […]

Andean condor can fly for 100 miles without flapping wings  — Natural History Wanderings