I love that site too. My chins aren't really big talkers though. They make the anger sounds from time to time, but the weirdest is that Muad'Dib still makes the baby sounds sometimes. Every couple of month's he'll wake up from a dream and be screaming. But he had a really good babyhood, so I don't know what his problem is. He also made that sound many times while I was driving them through Birmingham, AL on my way up to NY. Maybe he's never graduated to adult sounds as neither of his parents are very vocal.
Also funny, that right after Maureen was born, she and Muad'dib would make the singing noise at each other, but it was like it was chinnie radar. She never liked him to go too far away, and when he did, she would make the noise. Then as they got closer together, the noise would be more frequent. They still do it sometimes. Close those two are.
Mike was really the king of noise. Sassy, I don't know how you stand it, but when its mating time, you cannot shut him up. He hoots all night long.