Laughing kookaburra (Dacelo novaeguineae) - love them! They are loud and bossy, but also manage to appear very cuddly.
Very entertaining to watch, I had so much fun watching them dig for worms and eat them up like they were spaghetti.
We do have some issues with the ones on the study side as they are very used to people. This means that when we are mist-netting in order to catch superb fairy-wrens and ring them we have to be really careful and watch out for kookaburras. They will come very close to people and the nets and might try to grab any birds that fall into the net. They just sit there and wait!