Little olive drab bird

The bush is so full of these little drab birds that are difficult to identify. Usually they are little grey ones, but this one is slightly brighter than grey, with a beak that appears to be a slightly out of alignment and beady little eyes.

When I am feeling more academic I will consult my field guide. For now I'll just enjoy it for what it is - a little olive drab bird.

UPDATE - 17 September 2011: I believe it is a Sombre Greenbul.