red-crowned crane harmony dance

activity attraction avian behavior bird birds black cavort cold couple court courting courtship crane coinciding cranes crowned dance dancing dating display displays ecotourism endangered exhibition field flock frigid frozen gallantry group grus harmonious harmony instinct japan japanese japonensis jealousy mate mates nature ostentatious pair pursuit redcrowned romance romantic running season seasonal showboat showy snow snowy solicitation spectacle strut suitor suitors symmetrical symmetry synchronize synchronized synchrony threatened travel trees white wildlife wings winter wintry