White-browed Scrubwren (Sericornis frontalis)
Your photo just showed up as the random bird on my homepage and I just had to let you know it brought me a huge smile! What a face, I can't make up my mind if those brows make it look comical or stern.. I think both!
Thanks Angele and Pelle. It looks as if it's got the worries of the world on it shoulders, doesn't it?