All my birds are guaranteed to be free from all disease that can plauge our beloved pet parrots. While my babies are not taken for veterinary work, rest assurred that they are healthy and disease free! I purchased all my breeders at one time and all were tested for avian diseases (testing included DNA probe) and all were clean and free of all known diseases. My aviary is "closed" which means that NO new birds have been in my breeding aviary for the past 10 years! Also, no one except for me and my employees are allowed in there either!