The death of my conure
My green cheek conure just recently passed a few hours ago. Two days ago he was acting absolutely normal and looked great. Yesterday morning he was very lethargic and spent most of the day on my shoulder or in my lap, with his head tucked in, and he was all fluffed up, almost bloated looking. He wasn't acting normal, but we assumed he was just tired.
This morning he was on the bottom of his cage, he could barely move. We were about to leave for the vet, but then he died. I would like to know what could have done this, both for some closure, and in hopes that if we get another bird we will be able to prevent it.