Possessive over water dish
(Pittsburgh, PA United States)
A sun conure I take care of when their owner is out of town has always tried to bite when you try to touch her water dish. Now she has begun flying across the room to attack if she sees you going near the water dish. This has only been happening for the past month.
She shares a cage with a senegal parrot. There are two food and water dishes in the cage. She does not seem to pay any attention to the bowl in the back and does not care if you touch it. What might be causing this behavior and how can we get her to stop the behavior.