I took in a sulfur Crested cockatoo in May 2019, She was supposedly abused by a male cockatoo during breeding, we found out that she was at least 20 years old and that she was probably somebody's pet due to she talks some, she is afraid of hands. She was doing really good till lately, me and my husband went out of town and my son took care of her, she was out and was spent time with everyday, when we got home she turned against us, she bit my husband twice drawing blood, and she screaming and doing the intimidation dance, she is rubbing her beak along the cage and lunging at us when we go by. she will let me pet her then she would jump back. I am not understanding what happened. anyone have any ideas or things we should do, I thought she was just throwing a temper tantrum because we left but it is not going away and its been 5 days.