At 37,000 ft, there's nowhere near enough oxygen to support the high oxygen demand of a high-metabolic organism (bird!), nor enough air density to support either flapping or gliding flight. So the answer is - no bird flies this high.
eagle
a
Gas comes out of airplanes, which causes air pollution, and sometimes changes the sky color.
Airplanes were built for flying and transportation purposes.
They fly.
Answeryes ... sometimes quite severely.partly from flying through charged clouds,and partly from just the friction from the air as the plane passes through it.
Yes. Airlines sometimes change their flight planned routes to take advantage of the jet stream when flying East, and avoid the jet stream when flying West.
Flying in airplanes: up to scratch idea
In 1903.
there is bob flying one and bill
1920
Flying in airplanes... He takes the train...
safety service
A formation