Ron, I am so sorry for your loss. I lost a cockatiel two
years ago from eggbinding problems (I had tried everything
including lupron shots, but it was too late). Anyway, I have
never greived the loss of a pet so deeply, there's just
something about birds and their owners.
Scratch will recover in time, just let him grieve and make
sure he is eating and drinking. You may want to feed him
some extra treats like millet.
When I lost my tiel, I waited until a "needy" bird came
along that needed a home. Since I already had the extra cage
and supplies. In time you may run across a tiel who needs a
good home, either from a rescue or ad in the paper, etc.
Good luck to you.