Help me pick a tree frog sex

[Crystal6]

As always Kurt is here to save the day!

Do you read ALL the topics. Seems like you do.

[Kurt]

I try to.

[John]

There's no way you can tell a male in one photo from a female in another photo (and often not even in the same photo) by colour/markings.

[Kurt]

The only way I was able to sex my red-eyes (and my blue-webs) is that the males started calling and the females became ridiculously huge (compared to the males)