Marlene
Welcome to the neighborhood!
Terrible news. I am so sorry for your loss.
It hurts us to ask this esecaily now but really it might save another birdies life it is a sickness that can pass bird to bird Once again Beth I am so sorryI am so so sorry for your loss. How hard that must be Are you going to get a necropsy done? It would show you exactly why this happened. Did you get him from a breeder? You should probably inform them just in case he came to you sick (which is very possible.)