Can You tell the sex on whites tree frogs?

[Maz1968]

Since both males and females call((But only males call by inflating his throat sac)), size doesn't really matter, and neither does color.. The best way to sex them as far as I know is to take a look at their front feet for nuptial pads..
See how the Males have a thumb spot


females Dont


Reference
*pics From "ladybird" on RFUK *

is this pad there all the time once they reach a year old, or only when its mateing season...

[Tree frog maniac]

Wait so the one that I think is a female inflates its throughout and has thos pads as well is bigger than what I think is the male who doesn't have those type pads and doesn't say a word