Do you know why the upstairs said impossible? Now this era is different from before. There are also many bird catchers. Even if you are well trained, if you meet a bird catcher, your pigeon will be finished unless you are close at hand. In addition, ancient pigeons sent letters, just like ordinary pigeons today. For example, you and I have some pigeons. I brought all your pigeons to my house. I stood you up when I wanted to send a message. Pigeons are homesick This habit makes your pigeon know the way and fly back. Instead of training it like a dog, it will go wherever you tell it to go. Every animal has different habits. We can't generalize. Or put a chip in the pigeon's brain. I think that's simpler and easier to master.