I just got a trio at the state fair and one of the females makes a sound like a hawk kind of, except instead of going high to low she goes from low to high, it's really funny sounding. I will imitate it in front of the cage and she'll do it back and act like she wants out but when I open the door she'll go to the back. Maybe she just likes to talk. She'll just pace in front of me and look like she's listening when I talk to her. T\\Is that a normal sound from them?