what killed my budgie?
I noticed a few weeks ago my budgie was "puffing" out a lot. Since we had a cold front go through my air was running more so I moved him from the vent and he started to act fine. Three days ago he puffed himself back up I noticed his beak was flaking and his poop/urine was a bright yellow. He had stopped chirping but was still eating. Last night he was walking/stumbling around the cage trying to get in a corner. This morning he was dead what could of he died from?