Becoming a Psychiatrist in Australia

Hi, I want to become a psychiatrist (I am not saying it's 100% as I may realise that another specialisation would interest me more, but I have been interested in psychiatry for a long time now) and wish to move abroad in the future. I was looking at the entry requirements in Australia to start your psychiatry specialist training and read that you only need PGY1 but completing PGY2 is preferred. From reading about it, PGY1&2 appear to be the same concept as FY1&2 here in the UK, so I was wondering if it is possible to start and finish my specialist training in Australia after completing FY2 here?
Thank you for any tips