This list of mythical creatures that begin with this letter and I am constantly gathering information from each continent, and is continually being updated.
Peng (Chinese)
Peng or Dapeng is a giant bird that transforms from a Kun giant fish in Chinese mythology. Wing of the Peng from the Japanese Kyoka Hyaku Monogatari. They can turn into giant birds. When they are in bird form, they are known as Peng. Nobody knows how big these birds actually are.
When they fly, their wings are like the colorful clouds in the sky. When there is a storm in the northern sea, the Peng will fly to the southern sea. They travel three thousand (Chinese miles) in one flap of their wings. They can fly for six months without rest.