how can you tell gender difference in a button quail?

[mates5]

I have two quail and they have eggs but i do not know if the eggs will be fertilized or not.
how can you tell if you have male or female button quail?

 

[TwoCrows]

There are several Button experts on the quail forums, I am not one of them, Someone should be along shortly to answer this question.

 

[shelleyd2008]

Most of the 'button experts' have gotten tired of the drama

You should be able to find the information in one of the stickies, but I'll give you the basics.

1) Only males get red/rust/pink colored feathers around their vents.

2) Usually only males get a white bib under their chins, but not all color varieties get them and some females (mainly silvers) have been known to get these too. Notice the bird in front of the below pic. That is a wild-colored male. The bird behind it is also male but does not have a bib. That male is a cinnamon blueface and the blueface variety does not get bibs.

3) Only males make this sound: Button quail crow

There are other 'defining' factors, but this should cover almost all color varieties.