URL：https://www.birdsasart-blog.com/baa/wp-content/gallery/japan/red-crowned-crane-flight-head-and-neck-portrait-_90z1179-akan-crane-center-hokkaido-japan.jpg
掲載元：https://www.birdsasart-blog.com/baa/2012/03/07/gear-evaluation-the-canon-300mm-f2-8l-is-ii/
