The mute swan is a symbol of beauty and elegance, thanks in no small part to the beloved fairy tale "The Ugly Duckling," about an awkward and unsightly duckling who upon growing up discovers he is actually a swan. The proverbial story is often used as a lesson in transformation and the relative nature of beauty. One glance at this swan, seen here holding a feather in a nature preserve in the Netherlands, and it"s easy to see how the idiom "graceful as a swan" came about.