This young Kookaburra made the error of trying to perch in the Bell Miners area, normally they will attack in pairs or whole groups, but this guy was on his own and didn't hold anything back
The Kookaburra's eye colour is due to it moving part of the eye membrane over the eye, I've noticed this before when photographing these guys at rest (quietly perched) maybe because it was under attack, perhaps it protects the eye ?