We have a Jenday Conure at work named Sammi. He was always very sweet but suddenly he's territorial and he bites hard. If you give him your arm or shoulder he'll step up just fine but if you get hands or fingers near him he will lunge and bite. What can I do to help Sammi so he can find a good home? It's becoming difficult to dissuade people with small children or little experience from buying him with all his pretty colors and he's already been returned once.