When birds wear it for the first time, they may not be used to various phenomena such as biting and resisting. At this time, parents need to be patient. After all, birds have not worn anything since they were born, it is inevitable to be nervous or even afraid of new things from the outside world. You can wear it several times a day, take it off every half an hour or so, and then wear it again.

This is repeated several times a day. Generally, you can adapt to it in 1-3 days. If the bird bites badly, you need to stop it. It takes a process to train the bird. Please be patient!
It is almost impossible to wear it for the first time. If you have this idea, you are not recommended to buy it. It is really too demanding. If you want to be quick, you will not reach it!