I say that people should take some sort of questionaire before adopting a pet to see if they show any type of?

aggression towards animals. do you think this a good idea and if yes please tell me why?

What are some good websites about parakeets?

I need information on their care feeding/diet, handling, supplies, etc. Basically any thing that will help a first time parakeet owner better raise their new bird. Feel free to add any personal tips that you have discovered about parakeets.
I just want to thank you in advance. Anything will help me.