The Gray Treefrogs are able to camouflage themselves from gray to green or vice versa, depending on the substrate they are sitting. This one was about to change quickly its color after I found it under the tarp that covers our kayaks. Making the picture with the frog hanging on the orange or blue plastic boats, well, this is not what I really like. Putting the frog onto a tree stump gives it a much more natural setting. Being fast is key because these frogs are nocturnal and like to hide again. The photo doesn’t necessarily tell much about its size. I was pretty close with the Sigma 150 mm, f/2.8 macro lens and with a 1:1 magnification ratio you can easily fill the frame with this probably about 35-40 mm long critter.