Highest Flying Birds In The World – Mallard – 21000 feet

Overview:-

• Mallard is a migratory wild duck found in North America and Europe. Mallard ducks are notable for their iridescent-green head and bright yellow bill. Before the start of winter mallard ducks migrate to the South where the temperature is mild. Mallard ducks usually travel at an altitude of 1000-4000 feet. But they are also known for flying at 21000 feet.