The symptoms of cockatiel hating its owner include: ignoring the owner, avoiding the owner, running away immediately when the owner approaches, and even actively attacking the owner, and biting the owner's hand when the owner is feeding. But cockatiels have very good personalities. Generally, they will not hate or be angry with their owners. If they hate you, you need to spend more time with them. The methods to develop a relationship with a cockatiel are as follows:

1. Do not keep it in a cage all the time. You can close the doors and windows, take the cockatiel out of the cage and raise it. The owner needs to spend more time with the cockatiel. Be around the parrot and develop a relationship with it.

2. Put the food that the cockatiel likes to eat on your hand to entice the cockatiel to eat the food, and then pet the cockatiel to make it feel safe towards you.

3. When the cockatiel gradually becomes dependent on you, you can properly train the cockatiel and give it a few simple commands.