Sorry to hear that
I watched this thread a little, and was honestly amazed you kept it alive as long as you did.
That is a very hard position to be in, but your compassion and dedication was commendable.
Salute
such a small bird, I dont know how you could hand feed without asperating it.
Seems as though you may be reaching the point of no return.
You may just need to decide to go for it and try, or give up on him, his chances are getting slimmer all the time.
Hard call to make, Ide hate to be in your...
I did not read all the posts but, Have you been tapping on its beak softly with something to get it to initiate its feeding responce?
Hand feeding is done from right to left.