Male/female in Wood Frogs?

[Bill B]

How does one determine this?

[Kurt]

Females are larger and rounder than the males.

[Bill B]

Well, I assume they'll be larger because they have egg, to say the least. But how about when they're not carrying eggs? Still the same is true?

[Ebony]

The females are generally larger as Kurt said and from what Ive read, The females can be more of a reddish colour than the males in the breeding season. The males also will develop the black thumbs known as the nuptial pads and croak. But generally the size of the adult female in comparison to the male is a good indication out of the breeding season.