Maggie I am sorry I no what you are going through my budgie buster had a tumor on his tail the same place as yours he had an operation had to wear a bucket over his head I only had him a few months after the operation he had squamous cell cancer. I had him for 6 and a half years he was my life.I miss him so much it will be 3 years in December since I lost buster.. Now I have another wonderful budgie to love..I cried when I watched your video your budgie Chi Chi is so beautiful and clever to.i can see that you adore your beautiful budgie you love him so much I can see that.. Thank you for sharing your video.