Pigeons and pigeons

I observed a pigeon and a pigeon.

The feathers of the pigeons are all white. Looking from a distance is like a group of "cotton". The feathers on the pigeons are some white and some black. The eyes of these two pigeons are red, and I also see one Only believe that Wu is laying eggs in the nest!

Their mouths are very white, very pointed and their tails are short. The pigeons fly high and fly very fast.

In ancient times, if people wanted to send letters to distant relatives, they would use the "postman" of the letter pigeon. If there is no such "postman", then the ancients would only have to walk or ride to send letters.

If you are riding a horse to send a letter, I am afraid that you will be able to send a letter if you are riding dozens of horses. If you are walking, you have to walk for dozens of days. The ancient pigeons are really useful!

But now it’s different. If you just find a pigeon, tie the letter to its foot, and then let it fly.

It will fly around. I know that because people don't use letter pigeons to send letters, and the pigeons don't practice for a long time, they lose this function.