moves slow reporter: this is where the wild things are. they snack on leaves and berries. i saw glowing eyes. reporter: they can also recognize the calls of dozens of birds. we know ravens. what does the raven sound like? reporter: they re unusually well versed in the world of decomposition, metamorphosis and insects and enjoying edible hand warmers. because because they re warm and they and you can eat them. they re actually potatoes. reporter: welcome to cedarsong nature forest kindergarten on washington s vashon island. we re not in southern california. no, it rains about nine months out of the year. i strongly believe that children cannot bounce off the walls if we take away the walls. reporter: that s what erin, who s been teaching preschool for years, did. she created a kindergarten that meets outside every day, no matter the weather. into the clouds it s counterintuitive in our culture, however, it s been shown that recess actually helps kids perfor