They are extremely common as cagebird pets in the UK, though I don't know if popularity has waned somewhat from their heyday of the 1950-60's. At that time they were very popular, particularly with folk who couldn't keep e.g. a cat or dog. The ideal pet bird.I didn't know that they were commonly kept as pets in Europe, I may have seen some in zoo aviaries but if I did I just can't seem to remember having done so.