I am so sorry. Its a hard thing to loose a pet. I lost my little Shih Tzu Keltsy in much the same way. Had the emergency vet on the phone all weekend but she just kept trying to convince me my pup was not as bad as I thought. She died in bed with me that night.
We just don't get to keep them long enough... Your bird was beautiful and I'm sure loved. And now will be missed.