People with hangovers get sick of them.

From my experience you're unlikely to hear them much during the day, like lots of birds they are at their most noisy early in the morning and then at dusk.

They do habitate my place though.

Not kookaburras, but these things feed on my front balcony (though apparently the previous owners of my house did used to hand feed Kookaburras):

King Parrots


Crimson Rosellas


Al