That is a good idea King Les. Unfortunatly, there is probably nothing else you could do being that far away. All you can do is express the amount of care a Too needs and hope that they will follow that care.
Try calling them when your Toos are at their "peak of the day" when they are the loudest, and if they ask what the noise is, tell them. Perhaps that would be enough to make them not want to take the bird.
If they still end up taking the bird, make them a care package with info from this site along with receipes for what they should be feeding their Too and other healthy foods (Harrisons) and toys.