Chinese painted/button quail

[DK newbie]

I have that problem too - also sexing them. I have six extra little button quail. I think most are male. I don't know about the brown one at all, but the two darker ones are males, I think. On the silvers, one is definitely a male, but don't know about the other two. There are just the six- I took pics as best as I could, showing the bib when I could get a good look. I also used a smaller plastic tub for my "baby brooder". Right now, I have a couple in it awaiting the much larger custom cage.

The brown one looks female. The two silvers you are uncertain about are probably 'slate' - silver blueface. You'll have to look at the color of the vent feathers to sex them as blueface buttons don't get bibs. Pale rust red or salmon means male.