Not real scary
In all I didn't really find this to be scary very much unless you enjoy playing horror themed video games a lot. Somewhat makes me think of the Silent Hill radios and when it starts to sound weird near the creatures. Don't remember a creature with this sound either. If you had added in a bit of static it could have been a tad bit scarier as well.
Also kind of sounds like someone trying to simply be creepy and yet failing at it. Then you hear wings at the end so I pretty much hear this.
"Huhuhuahahahahhuhuhuh"
"Eeeeeeeeeeeeeeeyah"
*wing fluttering*
*tap sounds*
If you intend to make people feel scared when hearing this then add some static and make it longer by about four seconds.
SCTE3