1.5K views · 51 reactions | The frogs sure are noisy this time of year and that surely is the case at Thorn Creek Woods Nature Preserve. How can you tell the difference between the calls of a chorus frog and a spring peeper? Chorus frogs have the unmistakable sound of a finger running along a comb, while a spring peeper has a high-pitched peep. | Forest Preserve District of Will County | Facebook

11K views · 572 reactions | How do you define the term "spring peeper" ? 1⃣ Any frog I hear in the spring 2⃣ Anything peeping in the spring 3⃣ Pseudacris crucifer 4⃣ Any frog, I am chaotic and possibly evil 5⃣ Stop it, I live in the west  Megan Seymour/USFWS. A spring peeper's vocal sac inflates as it makes several short "peep" calls. | U.S. Fish and Wildlife Service | Facebook