No, and there's increasingly fewer up here too mainly due to the cost of keeping them denutted! There are a couple of nasty weevils that make a right mess of coconuts, in fact our local council recently spent significant time and money spraying all the coconut palms along the Strand at Townsville precisely to combat one of them.
I've only this old PDF on weevils but it covers three of them, from 98'
NP Palm weevil_1998-02.pdf
my point was really that given how cast iron the cocnut palm is, if you have one that does suddenly lose its head chances are you have a major plant health issue in your yard.