It rains at the early spring, and the temperature rises after that, when these two conditions become complete, Montane brown frogs(Rana ornativentris) wakes up from hibernation all together and copulation and the egg laying are started. Frog's cry sounded around the pond, and I was able to see their appearances here and there.
I took a picture of the animation of the couple of the frogs that was copulating in water. After that,I took a picture of the animation of the scene where the couple of the frogs produces the face to the surface of the water and the scene at which the male barked.