Baby bird

I just found a baby bird in the greenhouse. Lucky I found it before the dogs did. I have no idea what sort of bird it is though, it just seems just a little too young to be able to fly yet, but is uninjured. I rang Australia Zoo and they suggested I put it up in a tree out of harms way, as the parents will normally be around watching it. So I did that, and some mynah birds were feeding it and looking after it, so I have just left them to it, as all seems well. One of the mynah birds had the telltale yellow on it's beak, and the other one didn't, it looked like a grown up version of the baby.