Andean Condor is the largest flying bird in the world with a wingspan of 12 feet.
Wandering Albatross weighs around 12 kg and has a wingspan of 10.5 feet while flying.
Marabou Stork found in the African forests weighs 8-9 kg and has a wingspan of 10 feet.
Kori Bustard is one of the heaviest flying birds in the sky weighing 18 kg and has a wingspan of 9 feet.
Trumpeter swan is a water bird weighing 14-15 kg and has a wingspan of 8 feet.
The species of Eagle weighs around 10 kg and has a wingspan of 7.5 feet.
The bird of Asia and Africa weighs around 12-13 kg and has a long wingspan of 11.5 feet.