Spring Peepers are a type of small tree frog. Truthful to their name, they emerge from hibernation in early spring. Soon after, the males – often hundreds at a time – will take over wetlands and call on warm and rainy nights to stake out a territory and attract a mate. Their surprisingly loud “peep” calls are usually produced from a safe location hidden in dense vegetation, and it can be difficult to spot them. An inflatable vocal sac on their throat serves as an amplifier, which allows them to call very loudly. The sound produced by a chorus of these inch-long frogs can be truly deafening up close! Be listening for peepers now that spring has officially arrived!