Captivity is a relative term. I’m not relegated to my home but I still have to pay rent, go to work, pay taxes and perform all those duties that enable me to be a good neighbor and good citizen of the world.
If captivity is all that you know it really captive? We have four budgies, all rescues. We really don’t have the background on any of them but we’ve kept them flighted thus they don’t leave the cage.