Frog - one or two spp?

Frog - one or two spp?

Observation - Frog - one or two spp?. Description: I've shown these pictures to various people but the identity of this frog is uncertain - is a common frog or a natterjack, or what?

I've shown these pictures to various people but the identity of this frog is uncertain - is a common frog or a natterjack, or what?