How Can Tiny Birds Fly for 30h Non-Stop?

Scientists want to know how some tiny birds fly so far every year.They weigh like a tennis ball, but still, travel thousands of kilometers twice a year.A new study shows that in the daytime some birds fly up to 6,000 meters above the ground to continue their trip.Some large birds already were the object of studies, but not the smaller ones.

So, a new study can give us information about where, when, and how tiny birds travel throughout the year.64 tiny birds have small backpacks on their backs, and 14 of them already show the necessary information about their moving.

"Wow" results of the study?

Small birds usually fly at night, but the study shows that they don't stop even when the sun comes out. The difference is that they fly 4,000 meters higher during the daytime.

It does not seem difficult to them. Their bodies allow such changes. These tiny birds have big hearts and can breathe in a lot of air. Even though it gets cold as they fly high, their bodies stay warm when they move.

One of the main reasons why these birds fly so high is that they can cool down, while the sun is up.

This study shows that nature is changing unexpectedly. There is a lot more to study about animals. It may help us to understand how birds can act in climate change.