A.C.R. Cordillera Escalera. In this picture, one can see the same specimen over a period of time of less than 1 minute. Obviously, these frogs are able to change colours quickly.
A.C.R. Cordillera Escalera, San Martn, Per. At a small permanent rainforest pond, there were at leat 10 frogs calling and some egg nests hanging on branches next to the water.