Just this past week I was researching fairy legends for my podcast and very often came across parallels between bird-men, fairies, angels, and (of course) aliens.
Like you said, it's fascinating that unconnected cultures from all over the world share such uncanny similarities in their myths and deities. It can't be coincidence. I do truly believe in an ancient cultural memory that has persisted throughout the many thousands of years of man's survival and evolution.
Great minds eh?! I don't believe in coincidences especially when it comes to history.
Thanks for reading.