This bird is a Lewin's Honeyeater - one of a trio of very similar birds - so I hope I have my ID correct.
These pictures were taken on a trip to the north coast of Australia a year or so ago. Along with parrots, gum trees and kangaroos, Australia is home to a vast number of honeyeaters - birds that have adapted to a wide range of habits, but have retained their basic structure. Such groups of animals always pose identification problems.
I am briefly separated from my library, so I can say no more about this bird - apart from the it also goes by the name of Meliphaga lewinii. Normal service will be restored soon.
So, over to you - click the link and off you go.