Harpy's song: requires a standard action?

[Roger Corbera]

Hiya, mi question is simply: the harpy captivating song requires a standard action or a swift action?

[MurphysParadox]

It is a supernatural ability which is a standard action that does not provoke an AOO. Individual abilities may override this default by explicitly stating so in the description.

Table of Actions, the last entry in the Standard Action section.