The goal was to cut out the extremely loud claps that occurred when Japan's bullet train emerged from tunnels. Engineers looked toward the kingfisher, which dives seamlessly into water. A nosecone designed after the bird's beak solved the issue.
Azure kingfisher: "The azure kingfisher is often glimpsed as a gorgeous flash of blue as it dashes along a stream. One of only two Australian river kingfishers, it nests in a burrow in the bank and dives for aquatic prey from an overhanging perch." Australian Wildlife www.bradtguides.com