How to have fun with your new cockatiel<br>Give your cockatiel time to adjust to your home. When you first bring your new cockatiel home, he may need anywhere from a few days to two weeks to get comfortable in his new environment. Limit your interactions with him during this time.

Can we draw the following conclusion?
Cockatiels must be obtained outside of the home.

Options:
[1]. Yes.
[2]. It's impossible to say.
[3]. No.
[2].