Tiktik

Tiktik is a creature in the form of a birdlike human. It is similar to wakwak in the common Filipino term. Both are winged humans who search for victims at night. They hunger for flesh and blood, especially that of fetuses. Tiktik look like harpies, and both creatures are named after the sounds they create. Tiktik have been regarded as synonymous to the Aswang together with the Manananggal and is also commonly confused as either one of them as well. According to folklore, one cannot hear the tiktik and the aswang when they are very near; on the contrary, one will hear loud noises whenever they are far away.

And there is No further information upon the sourced websites.