Possibly a Juvenile Mistletoe Bird?

I Took these photos today and can't positively ID these birds. One seems to have a red blush on the neck and the other one doesn't seem to have this or it maybe hidden under its plumage. I did catch a glimpse of a bird about 20 mins earlier that had red and black plumage and was quite certain it wasn't a Scarlet Honeyeater. At the same time as this photo there were Variegated Fairy-wrens and Double-barred Finches milling about, so any help with an ID will be appreciated.