Hey third times a charm and I say you have 3 roos?
The one in the back corner, the one standing at the red wall seam might be or it is the red wall reflexing to make the comb pinker, and the white one at the water.
But those are just my guesses. Closer head shots of them would make it easier for people to help out
The only one I'd really say I think is a roo from this pic is the white one by the waterer. But that's partly because the others are still hard to see even in the bigger pic. Closeups of the head and/or profile of each bird would allow for a more accurate guess....