Spring Peepers are tan or brown in color with a dark cross that roughly forms an X on their back, though sometimes the marking may be indistinct.The species have large toe pads for climbing, although they are more at home amid the loose debris of the forest floor. This frog has a vocal sac located by its throat, which expands and deflates like a balloon to create a short and distinct peeping sound. Only males have the ability to make this loud high-pitched noise, and they use it to attract mates. I found this little guy with the dew on his chin in my back yard in Rockaway, NJ USA. I used a Nikon D3100 with the 85mm macro lens.