It will take a while to gain trust an adult cockatiel. Please be patient and don't give up. Don't add too much new stuffs to his cage. Start one a time. Hand feeding him his favorite food is the best way to gain trust. You need work with him every day, if possible multiple times a day. The more time you spend with your bird, the quicker him will get comfortable with you.
To me, cockatiel is very food motivated, can be easily tamed. I have adopted cockatoo, which is not food motivated. It took me a month to gain enough trust to work with.
To me, cockatiel is very food motivated, can be easily tamed. I have adopted cockatoo, which is not food motivated. It took me a month to gain enough trust to work with.