It is said to snatch humans at night as prey, similar to the manananggal and the Ekek in rural areas of the Philippines.
It is also believed that this monster is called "Wakwak" due to the sound it makes when it flaps its wings while flying.
[citation needed] The Wakwak is often described as having long sharp talons and a pair of wings similar to those of a bat.
[2] The sound that a tuko (common house gecko) makes at night when out of sight was discovered by an American who spent much time in the Philippines to be attributed to a Wakwak.
[citation needed] However, over time the idea of a terrifying "Wak-Wak" is becoming rarer amongst the Filipino population with the story becoming only told to scare children.