Currawong Babies

A few weeks ago I noticed a messy-looking bunch of sticks high in a tree above my clothesline in Ballarat. At the time I couldn't be sure which bird had built it. But now I know whose nest it is, because today there were two fluffy baby currawongs in the tree,



(although I only got a picture of one of them),

and a third one on the ground:



I think they are grey currawongs, Strepera versicolor, because the adult seemed to have touches of white on the end of the primary wing feathers. But if anyone knows for sure, I'd be happy to be enlightened!