What kind of bird does the mysterious bird mean?

Xuanniao is a mythical bird in ancient myths and legends of China. The original image of the mysterious bird is similar to that of a swallow. With the development of the tribe, it evolved into cockscomb and peacock-tailed phoenix in the later period. From Shan Hai Jing: There is a mountain in Beihai called Youdu Mountain. Black water emerged with mysterious birds, snakes, leopards, tigers and foxes.

The prototype of the mysterious bird: the swallow represents the meaning: the ancestor of the Yin and Shang Dynasties. According to Records of Historian Yin Benji, Shang Qi's mother Zhu Di was pregnant in the suburbs and gave birth to Shang Qi. This became the legendary basis that the mysterious bird was the ancestor of Shang Dynasty.

Textual research: In modern times, Guo Moruo thought that the mysterious bird was a phoenix. According to Li Sao, "the phoenix emperor was flattered and afraid of heights in front of me".