How far can birds fly?

Today's technological advances have allowed us to delve into the migration of birds around the world.

Only recently, a tracking device is still so heavy that it can affect the flying ability of birds. But now, with ultra-light GPS tracking devices - only about 1.5g - we can track bird journeys without affecting their flight. Thanks to these devices, scientists have discovered that large seagulls can fly continuously over a distance of up to 15,000km across the sea before reaching the mainland. This journey is even further than a direct flight from Hanoi to New York (about 13,000km)! Most commercial aircraft today cannot go that far.

Surprisingly, albatross birds seem to be able to live in the sky for as long as they like, and they just need to beat their wings every few hours, thanks to a great new wing. The wings of the seagulls are the longest wingspan in the world of birds on the earth today, with a maximum length of up to 3.5 m. The flying performance of seagulls is also so high that the energy they use when flying is even less when they land on land!

Seagulls fly over the South Pacific Sea with incredible power using a technique called "dynamic soaring" . This technique allows seagulls to exploit wind power, and can be used when wind speeds are greater than 30 km / h. We now know that seagulls only reach the mainland when they need to mate, and once the children have left the nest, it can stay in the sky for up to 5 years ?!

Seagulls are a long-lived bird, and can live up to 60 years. Sadly, their numbers are decreasing by fishing boats. The specialized fishing lines with a length of up to 130km are pulled after each boat will be very attractive to seagulls because of the bait on it, also because this attraction has made them stuck and drowned on sea ​​very much.