If you really really want a Cockatiel show your mom and dad that you are willing to take full responsibility for your animal. Also what i did when i wanted a pet, i wrote a few pages on how to care for a the pet. I suggest you do the same.
Sorry if this was No help
RockyMeows13 <3
Well, first of all, I don't want a Grey Cockatiel.... perhaps they'll let you get one if you spend more time doing your English homework and less time online.
Start by asking her for a boa constrictor.
Tell him that you will take care of it and viola!
No need 2. Twitter is useless.
Say "Dad I have a new friend and she/he asked if I could go to there house?"
convince*
Cut his head off
You could tell his that it's your body, not his.
In a few years you'll be 18 and can just let them know.
My dad has a PS3 that he virtually never uses. And i have no other game systems. He keeps the PS3 in his room, how can I convince him to move it to the living room so everybody can enjoy it?
Just keep asking her about it. It actually took me three years to convince my mom and dad to let me get my bellybutton pierced.
You can't. Or you could possibly find a hypo-allergenic cat.