Bird with supposedly supernatural power over family (7)

I believe the answer is:

manakin

I'm a little stuck... Click here to teach me more about this clue!

'bird' is the definition.
(manakin is a kind of bird)

'supposedly supernatural power over family' is the wordplay.
'supposedly supernatural power over' becomes 'mana' (I am not sure about this - if you are sure you should believe this answer much more).
'family' becomes 'kin' ('kin' can be a synonym of 'family').
'mana'+'kin'='MANAKIN'

'with' is the link.

Can you help me to learn more?

I've seen this clue in The Telegraph.

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