otowa bridge cranes. winter japan with snow. birds in river with fog, rime, snow. dance in nature. wildlife scene, snowy nature. d

action animal asia asian bird birds black bridge cold copy couple courting courtship crane cranes crown dance duo focus fog fowl frozen full grus hokkaido japan japanese japonensis landscape length love mate nature otowa outdoors outside pair red redcrowned rime ritual river scene season snow snowy space sunset tancho two virility white wild wildlife winter wooing