My sister left for college last summer, and left her 5 year old cinnamon female cockatiel behind, in my care. I only know the basics of bird care, but I am learning. A couple od days ago, she started looking sick. She was puffed up on her perch, was having trouble balancing, and was shaking. Lucky for me, she decided to begin this on sunday, when all the vets are closed. Great. Again, I don't know much about birds, but I do know that when small animals are sick, you need to keep them warm. I placed her in a laundry basket lined with a towel, with a heating pad under it. After a while, she began to eat and drink again, and was becoming livelier. Yesterday we took her to the vet, and said she had a bacterial infection in her intestines. She is on SMZs now, although I am having a hard time giving them to her. I also fear that there is an underlying cause, like a bad liver or kidneys. does anyone here have any advice or information about cockatiels? She looks worse again today.