Cockatiel research

Just writing it down here so it's easier to find information. A lot of this was taken from tutorial videos, random stuff I found on Google, etc., only 20-40% was written by me. I'm way too lazy to write too many things in my own words. Remember that this is just the research I did. I'm not completely sure that all of it is true. Do your own research, and find information from a reliable source. Don't ever ask pet store employees for information, it's rarely true. There is also some things that I've left out, usually because I'm just too lazy to write it down.