Black-tailed Native-hen, Mildura
These guys are always running to hide so the first time I realised they had white stripes was when I zoomed in on this photo!
I'm pretty sure they were breeding at the wetland, along with all the other hens, and that the ones in the photo with the short tails are the babies.
It's pretty easy to get confused when a hen is running away, the easiest thing is to look for the black tail. If you're in Tassie, the Tasmanian Native-hen is bigger. They don't really hang out in groups and you see them by the sides of the road when they have babies (often with a Swamp Harrier overhead!).