vickie johnson answered question 1/29/2008 My Cockatiel Is Always Biting & Scratching Herself. She Has Very Heavy Powder Dust & Very Flakey Skin Otherwise She Is A Very Playful Happy Contented Little Girl. She Is Approximately 2yrs Old. What Could It Be? Hello, my cat had that same problem and I found out it was fleas get a flea collar for dogs