immature red crowned crane dance rehearsal

asia ballet behavior bird birds black brown chilly cold conspicuous court courting courtship crane cranes crowned dance display displays ecotourism endangered exhibition feather feathers flapping frigid frozen grandstand grus head hopping imitate imitating imitation immature immortality japan japanese japonensis juvenile longevity moves nature neck nobility ostentation ostentatiousness plumage practice practicing pretentiousness protected rehearsal romance season seasonal seasons show showboat snow snowy spectacle threatened training travel white wild wildlife wing wings winter wintry