I search the picture of this creature because nobody really see it clearlly and I found out they think that its only a myth in the Philippines.
photo from google.
So let's continue, "WAK-WAK" is actually a human being. You can hear them during at night. From what my ancestors said, their soul will go inside of a birdlike and it began to form like a bird but a body of human. Rumors said that they are not conscious, they just feel like dreaming that time. Be careful of being friends with them because you'll become one of them by giving you food or just visiting you always. You will start having dreams with them teaching you how to fly. When thay happened go immediately to their house so that the curse of being one of them will gone. Actually I knew someone, she's known about being a "wak-wak". She just live in next block. An old woman selling broomstick in morning. Its not creepy but its interesting,right? Thank you for reading..