Paul Heiple: "The pond is full of Pacific Chorus Frogs, Pseudacris regilla, (or Pseudacris sierra if you are a splitter). These frogs bread in any pools of water, they are doing quite well at the daylighted creek in the town center. Other small pools and ponds are scattered all over the area. I have an artificial pond for them in my yard. Sag ponds are on Coal Mine Ridge and on the trail at the bottom of Windy Hill. Stanford has Lake Lagunita. All of these and even larger permanent lakes are used by these frogs. The vernal pools work best because they have fewer predators. The PC frogs never estivate, they are active all summer but nocturnal. I hear them once in a while giving their dry land call. They are moving to the ponds now, I heard them at our pond last night.'