How to describe the black swan and duck in Yangzhou Slender West Lake?

Can be used: a shiny black feather, a pair of strong wings, a pair of dexterous flippers, is a beautiful and handsome black swan and duckling.

Slender West Lake, formerly known as Hu Bao, is located in the northwest suburb of Yangzhou City, Jiangsu Province, with a total area of 2,000 mu, a water area of 700 mu and a tourist area of 100 hectare. Slender West Lake is called Hu Bao. During the Qianlong period, Wang Ling, a poet from Qiantang (Hangzhou), came to Yangzhou and called it Slender West Lake.

The black swan is a large swimming bird in Cygnus, with a body length of 1 10- 140 cm. Span 160-200 cm; Weighing 3.7-8.75 kg. Its neck is the longest among swans. A slender neck is usually arched or upright in an "S" shape. The whole body feathers are curly, and the spots on the body feathers are flashing, mainly dark gray or dark brown, with gray abdomen and white flying feathers. The tail is long and forked, the outer feather tip is blunt and upturned like a harp.