Button quail gender?

[Whitepines]

I know how to sex Coturnix quail but I am not sure on button quail. Can you tell visually with these colors? Hoping I have figured out two pair, as I had a terrible hatch rate and ended up with 6 total so I don’t have many to choose from.
First set of twolight gray)

Second set of two (red and blue colored)

 

[All4Eggz]

@FloorCandy @NY Coturnix

I don't think you can sex button quail on coloring. I may be wrong, though... ^^ they can probably clarify

 

[FloorCandy]

The ones with red undersides are males. Any with red around the vent are males. The first pair I think the right one is male and the left female in the first pic, but I’m not certain.
@Ravenlover

 

[Ravenlover]

The ones with red undersides are males. Any with red around the vent are males. The first pair I think the right one is male and the left female in the first pic, but I’m not certain.
@Ravenlover

Floor candy has it handled, sorry will help more when I find time between work and my uncle and cousin sick with this delta covid now , time is short, but floor candy seems to have it down and nabiki is good person for info too