Oh geez...you guys. I am so mad at myself. I have had an Umbrella cockatoo for 5 years that I took in from a bad situation. Today, when I was busy selling chicks to someone outside, the U2 attacked and killed my African grey (my baby..I handfed her). It was TOTALLY my fault. I knew this U2 was aggressive with other birds and I didn't realize they were both loose. The U2 flew off his perch in one room and went to the other room and climbed up in the grey's cage and grabbed her. I am sick sick sick about it.