Own or sell. Both. Not sure on the laws as far as how strict they are as far as what would happen if you were caught. But wouldnt want to risk it myself. There are ferel colonies all over our country. They adept very well. They claim that quakers could pose an threat to the crop lands.
This is a wonderful website that lists each states laws
http://www.quakerville.net/qic/statelaw.aspI know many people keep their breeder birds outdoors but i wouldnt do it with the pets.
Word of the wise. Dont try and sneak a quaker in. Dont be the person that says i never thought it could happen to me and now my bird is gone and im sittin in court facing jail time.
These birds get loud. They have a disctinct voice. They will give you away very quickly.