What is the way to prevent pigeons from flying up?

Do not let the pigeons fly away from its flying feathers. After maturity, pair it in time, and will not fly after setting up.This kind of bird has the ability to recognize the road, but if they encounter raptors or other natural enemies, they may come back a few days later.Generally speaking, they will not go home for more than fifteen days late.If the public pigeons are flying, they may be abducted after finding their spouses.If they are unfortunately injured, they may never go home again.