Have Bird Questions? Ask a Bird Specialist.
I am so sorry, I have been traveling and out of internet contact. I am so sorry no one else took your question.
Is she still alive, and can I still help?
I am so very sorry.
I know nothing will make you feel better, but budgies are prone to both obesity and to cardiovascular disease. She may have suffered from heart disease, and honestly even rushing her to a vet as an emergency may not have saved her life.
Is the other bird looking Ok at this point?