Egrets and a couple of grey herons hang out in Yasugawa about 600 meters downstream from Yasugawa Ohashi (野洲川大橋) where Japan Route 8 crosses the Yasu River in Shiga Prefecture. The Shinkansen is about 1300 meters from the camera, and the JR Tokaido line, which we can see under the Shinkansen tracks, is about 2100 meters away.
The telephoto scenes were shot from under Yasugawa Ohashi with an old 300mm Olympus Zuiko OM System lens on an Olympus OM-D E-M5 camera (12x magnification). The opening pan shot and the photo at the end were taken with a 17mm lens. I processed the audio with a high-pass filter to reduce low frequency traffic and wind noises and to emphasize the higher frequency sounds of the river as it ran under the bridge.