When I was a young AAC officer in Sydney, I heard of a Major(AAC) Mitchell who I think was in Dubbo and apparently he did do a cracking cockatoo call!
Even now there is a Lt Col(AAC) Major - great bloke too! I genuinely mean no disrespect. I recall one of the other officers making comment at a dinner when he was either Captain Major or Major Major - he wasn't impressed, if he had a dollar for every time...

