This thumbnail-sized frog is the “spring peeper,” and hearing it fills me with joy. Every ditch and pool comes alive with peeper calls in February, as long as the weather is warm enough.

On Monday, the Maine Audubon Society spoke in favor of two bills to make the spring peeper as the official state amphibian and the wood turtle as the official state reptile. Maine Audubon says ...

These frogs are the wood frog, pictured above; the spring peeper; the gray tree frog; and the similar Copes gray tree frog.