It always has distinctive black stripes as befits its rank. Our diminutive tree frogs, hiding in trees and shrubbery, love to sing in the dark. Don't let anyone tell you they produce their sound by rubbing their back legs together. That simply isn't true. The sound very definitely comes from their little throats.
Tree frogs are easy to hear but hard to see.
They are greenish brown with protruding eyes that are large in proportion to their body size. These are much more visible. You will often find a giant toad sitting in contemplative silence next to a puddle. Both types have very wise expressions although where traffic is concerned, they are, unfortunately, not wise at all. They particularly like to sit in the middle of roads after a rain shower.