Hello, I am a new member, but I have a friend who is a pro on all types of birds. She said that if the Petco Person who cut the wings did it right, the wing itself is OK, it is probably the "blood feathers". If these feathers are cut in the wrong place, the blood vessels will remain open, thus bleeding. She suggested to pluck the remaining stem of the feather to stop it from bleeding.Blood feathers occur naturally she said, but when you cut them in the wrong place, your pet will bleed continuously. Hopefully this is all it was and not a Petco accident. Hope that helps.