Help! My 4 yr old female grey all of a sudden started pulling out feathers this past Sunday and has continued since then for the last 4 days. Saw an avian vet yesterday who examined her and asked a million questions about diet and behaviors. Suffice to say vet said Tillie appeared very healthy. Vet made diet suggestions, toy suggestions, e-collar, gabapentin temporarily prescribed for anxiety. I can try all of this but I just don't understand why all of a bum sudden it began!